<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/10th-century_mathematician> .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://caligraph.org/ontology/birthPlace>	<http://caligraph.org/resource/Baghdad> .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/Medieval_Iraqi_mathematician> .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/9th-century_mathematician> .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Medieval_Iraqi_mathematicians> .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/Egyptian> .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:912_deaths> .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:10th-century_astronomers> .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:835_births> .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/Medieval_Iraqi_astronomer> .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://caligraph.org/ontology/occupation>	<http://caligraph.org/resource/Astronomer> .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/Person_from_Baghdad> .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/835_birth> .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/835> .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/Arab_scholar> .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://caligraph.org/ontology/occupation>	<http://caligraph.org/resource/Mathematician> .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/Iraqi> .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/Pre-modern_Arab_scientist_or_scholar> .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/List_of_pre-modern_Arab_scientists_and_scholars> .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:People_from_Baghdad> .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:People_from_Baghdad_by_occupation> .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Iraqis_in_Syria> .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/Scientist_in_medieval_Islamic_world> .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/Arab> .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/10th-century_person_of_the_Abbasid_Caliphate> .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/10th-century_astronomer> .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/List_of_Iraqis> .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://www.w3.org/2004/02/skos/core#prefLabel>	"Ahmad ibn Yusuf" .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/912_death> .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Arab_scholars> .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/List_of_scientists_in_medieval_Islamic_world> .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:10th-century_people_of_the_Abbasid_Caliphate> .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:9th-century_mathematicians> .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:9th-century_mathematicians_by_nationality> .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/List_of_Egyptians> .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/List_of_Arabs> .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://caligraph.org/ontology/deathPlace>	<http://caligraph.org/resource/Abbasid_Caliphate> .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://www.w3.org/2000/01/rdf-schema#label>	"Ahmad ibn Yusuf" .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://www.w3.org/2002/07/owl#sameAs>	<http://dbpedia.org/resource/Ahmad_ibn_Yusuf> .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://www.w3.org/2004/02/skos/core#altLabel>	"Ahmed ibn Yusuf" .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:10th-century_mathematicians> .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/912> .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:10th-century_mathematicians_by_nationality> .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#NamedIndividual> .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Medieval_Iraqi_astronomers> .
<http://caligraph.org/resource/Ahmad_ibn_Yusuf>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/2nd-millennium_birth> .