User: I have a question about the molecule with SMILES O=c1[nH]c2cccc(N3CCN(Cc4cccc(-c5ccccc5)c4)CC3)c2o1.
Assistant: Sure, what is your question?
User: How many hydrogen bond acceptors does this compound have?
Assistant: The answer is 4
User: I have a question about the {#molecule|chemical|compound!} with {SMILES__description} {SMILES#}.
Assistant: {#Sure, what is your question?|How can I help?|That sounds interesting, how can I help?|Interesting, how can I help?!}
User: {quest#}
Assistant: {#The answer is |!}{answ#}
O=c1[nH]c2cccc(N3CCN(Cc4cccc(-c5ccccc5)c4)CC3)c2o1
O=c1[nH]c2cccc(N3CCN(Cc4cccc(-c5ccccc5)c4)CC3)c2o1
7-[4-[(3-phenylphenyl)methyl]piperazin-1-yl]-3H-1,3-benzoxazol-2-one
How many hydrogen bond acceptors does this compound have?