"ceasefire" . "pact of Biak-na-Bato" . . "Pact of Biak-na-Bato" . . . . "truce of Biak-na-Bato" . "peace treaty" . "Kasunduan Sa Biak-na-Bato" . "December 14, 1897" . "Pact of Biak Na Bato" . "an agreement was reached" . "Pact of Biak-na-Bato" .