[{"from": "human", "value": "Given compound, write its InChI. ->  Benzo(b)fluorene\n"}, {"from": "gpt", "value": " InChI=1S/C17H12/c1-2-6-13-11-17-15(9-12(13)5-1)10-14-7-3-4-8-16(14)17/h1-9,11H,10H2\n"}]