Task: Please answer the following question about the molecule with SMILES O=c1[nH]c2cc(Cl)ccc2o1.
Question: How many hydrogen bond acceptors are there in this compound, calculated according to Lipinski's original rules (i.e., counting N and O atoms)?
Answer: 3
Task: Please answer the following question about the molecule with {SMILES__description} {SMILES#}.
{#Description|Question|Request!}: {quest#}
{#Result|Answer|Completion!}: {answ#}
O=c1[nH]c2cc(Cl)ccc2o1
O=c1[nH]c2cc(Cl)ccc2o1
5-chloro-3H-1,3-benzoxazol-2-one
How many hydrogen bond acceptors are there in this compound, calculated according to Lipinski's original rules (i.e., counting N and O atoms)?