User: I want to know more about the molecule with SMILES CN1CCC2=C(C1)C(c1ccccc1)c1ccccc12.
Assistant: How can I help?
User: How many heavy (non-hydrogen) atoms does this compound have?
Assistant: 20
User: I want to know more 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#}
CN1CCC2=C(C1)C(c1ccccc1)c1ccccc12
CN1CCC2=C(C1)C(c1ccccc1)c1ccccc12
2-methyl-9-phenyl-1,3,4,9-tetrahydroindeno[2,1-c]pyridine
How many heavy (non-hydrogen) atoms does this compound have?
20