Task: Answer the following question about the molecule with SMILES O=C([O-])P(=O)([O-])[O-].[Na+].[Na+].[Na+].
Question: Which USAN substem can this drug or clinical candidate name be matched with?
Completion: fos-
Task: Answer the following question about the molecule with {SMILES__description} {SMILES#}.
{#Description|Question|Request!}: {quest#}
{#Result|Answer|Completion!}: {answ#}
O=C([O-])P(=O)([O-])[O-].[Na+].[Na+].[Na+]
O=C([O-])P(=O)([O-])[O-].[Na+].[Na+].[Na+]
trisodium;phosphonatoformate
Which USAN substem can this drug or clinical candidate name be matched with?
fos-