<http://caligraph.org/resource/City_of_Washington_(ship)>	<http://caligraph.org/ontology/builder>	<http://caligraph.org/resource/John_Roach_&_Sons> .
<http://caligraph.org/resource/John_Roach_&_Sons>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/American_company_established_in_1864> .
<http://caligraph.org/resource/John_Roach_&_Sons>	<http://caligraph.org/ontology/industry>	<http://caligraph.org/resource/Shipbuilding> .
<http://caligraph.org/resource/John_Roach_&_Sons>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/Defunct_manufacturing_company_based_in_Pennsylvania> .
<http://caligraph.org/resource/John_Roach_&_Sons>	<http://caligraph.org/ontology/industry>	<http://caligraph.org/resource/Manufacturing> .
<http://caligraph.org/resource/John_Roach_&_Sons>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:American_companies_established_in_1864> .
<http://caligraph.org/resource/John_Roach_&_Sons>	<http://www.w3.org/2004/02/skos/core#altLabel>	"J. Roach & Sons" .
<http://caligraph.org/resource/John_Roach_&_Sons>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#NamedIndividual> .
<http://caligraph.org/resource/USS_Nantucket_(IX-18)>	<http://caligraph.org/ontology/builder>	<http://caligraph.org/resource/John_Roach_&_Sons> .
<http://caligraph.org/resource/John_Roach_&_Sons>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/List_of_shipbuilders_and_shipyards> .
<http://caligraph.org/resource/USS_Quinnebaug_(SP-1687)>	<http://caligraph.org/ontology/builder>	<http://caligraph.org/resource/John_Roach_&_Sons> .
<http://caligraph.org/resource/John_Roach_&_Sons>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:1885_disestablishments_in_Pennsylvania> .
<http://caligraph.org/resource/John_Roach_&_Sons>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/Pennsylvania> .
<http://caligraph.org/resource/John_Roach_&_Sons>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/Manufacturing_company_disestablished_in_1885> .
<http://caligraph.org/resource/John_Roach_&_Sons>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/American_company_disestablished_in_1885> .
<http://caligraph.org/resource/SS_City_of_Chester>	<http://caligraph.org/ontology/builder>	<http://caligraph.org/resource/John_Roach_&_Sons> .
<http://caligraph.org/resource/John_Roach_&_Sons>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Privately_held_companies_based_in_Pennsylvania> .
<http://caligraph.org/resource/John_Roach_&_Sons>	<http://caligraph.org/ontology/foundingYear>	"0001" .
<http://caligraph.org/resource/John_Roach_&_Sons>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/Manufacturing_company_established_in_1864> .
<http://caligraph.org/resource/Delaware_River_Iron_Ship_Building_and_Engine_Works>	<http://caligraph.org/ontology/parentCompany>	<http://caligraph.org/resource/John_Roach_&_Sons> .
<http://caligraph.org/resource/John_Roach_&_Sons>	<http://caligraph.org/ontology/subsidiary>	<http://caligraph.org/resource/Standard_Steel_Casting_Company> .
<http://caligraph.org/resource/John_Roach_&_Sons>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/Defunct_shipbuilding_company_of_the_United_States> .
<http://caligraph.org/resource/SS_City_of_Peking>	<http://caligraph.org/ontology/builder>	<http://caligraph.org/resource/John_Roach_&_Sons> .
<http://caligraph.org/resource/John_Roach_&_Sons>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:American_companies_disestablished_in_1885> .
<http://caligraph.org/resource/John_Roach_&_Sons>	<http://caligraph.org/ontology/foundingYear>	"1864" .
<http://caligraph.org/resource/Chester_Rolling_Mill>	<http://caligraph.org/ontology/parentCompany>	<http://caligraph.org/resource/John_Roach_&_Sons> .
<http://caligraph.org/resource/Standard_Steel_Casting_Company>	<http://caligraph.org/ontology/parentCompany>	<http://caligraph.org/resource/John_Roach_&_Sons> .
<http://caligraph.org/resource/John_Roach_&_Sons>	<http://www.w3.org/2004/02/skos/core#prefLabel>	"John Roach & Sons" .
<http://caligraph.org/resource/John_Roach_&_Sons>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Manufacturing_companies_established_in_1864> .
<http://caligraph.org/resource/USS_Saranac_(1899)>	<http://caligraph.org/ontology/builder>	<http://caligraph.org/resource/John_Roach_&_Sons> .
<http://caligraph.org/resource/John_Roach_&_Sons>	<http://www.w3.org/2000/01/rdf-schema#label>	"John Roach & Sons" .
<http://caligraph.org/resource/John_Roach_&_Sons>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:1864_establishments_in_Pennsylvania> .
<http://caligraph.org/resource/John_Roach_&_Sons>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/Privately_held_company_based_in_Pennsylvania> .
<http://caligraph.org/resource/John_Roach_&_Sons>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Defunct_shipbuilding_companies_of_the_United_States> .
<http://caligraph.org/resource/USS_Alert_(AS-4)>	<http://caligraph.org/ontology/builder>	<http://caligraph.org/resource/John_Roach_&_Sons> .
<http://caligraph.org/resource/John_Roach_&_Sons>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/1864_establishment_in_Pennsylvania> .
<http://caligraph.org/resource/John_Roach_&_Sons>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Defunct_manufacturing_companies_based_in_Pennsylvania> .
<http://caligraph.org/resource/John_Roach_&_Sons>	<http://www.w3.org/2002/07/owl#sameAs>	<http://dbpedia.org/resource/John_Roach_&_Sons> .
<http://caligraph.org/resource/USS_Huron_(1875)>	<http://caligraph.org/ontology/builder>	<http://caligraph.org/resource/John_Roach_&_Sons> .
<http://caligraph.org/resource/John_Roach_&_Sons>	<http://caligraph.org/ontology/foundedBy>	<http://caligraph.org/resource/John_Roach_(shipbuilder)> .
<http://caligraph.org/resource/John_Roach_&_Sons>	<http://caligraph.org/ontology/subsidiary>	<http://caligraph.org/resource/Morgan_Iron_Works> .
<http://caligraph.org/resource/John_Roach_&_Sons>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/Company_based_in_Delaware_County,_Pennsylvania> .
<http://caligraph.org/resource/John_Roach_&_Sons>	<http://caligraph.org/ontology/subsidiary>	<http://caligraph.org/resource/Chester_Rolling_Mill> .
<http://caligraph.org/resource/John_Roach_&_Sons>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Manufacturing_companies_disestablished_in_1885> .
<http://caligraph.org/resource/John_Roach_&_Sons>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/1885_disestablishment_in_Pennsylvania> .
<http://caligraph.org/resource/USS_Niagara_(1898)>	<http://caligraph.org/ontology/builder>	<http://caligraph.org/resource/John_Roach_&_Sons> .
<http://caligraph.org/resource/Combination_Steel_and_Iron_Company>	<http://caligraph.org/ontology/parentCompany>	<http://caligraph.org/resource/John_Roach_&_Sons> .
<http://caligraph.org/resource/John_Roach_&_Sons>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Companies_based_in_Delaware_County,_Pennsylvania> .
<http://caligraph.org/resource/John_Roach_&_Sons>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/Shipbuilder_or_shipyard> .
<http://caligraph.org/resource/John_Roach_&_Sons>	<http://caligraph.org/ontology/numberOfEmployees>	"4000" .