[{"from": "human", "value": "Write InChI of given compound. ->  Lactose\n"}, {"from": "gpt", "value": " InChI=1S/C12H22O11/c13-1-3-5(15)6(16)9(19)12(22-3)23-10-4(2-14)21-11(20)8(18)7(10)17/h3-20H,1-2H2\n"}]