question: How large was the fleet that attacked the Bithynian coast along with the Pecheneg allies ?
answer: 10,000 vessels
turker_answer: The fleet that attacked the Bithynian coast along with the Pecheneg allies was 10,000 vessels .
rule-based: The fleet that attacked the Bithynian coast along with the Pecheneg allies was 10,000 vessels .