Question: Please describe this drug.
Constraint: The Molecule can be represented with the SMILES [Rb].
Result: Rubidium atom is an alkali metal atom.
{#Question|Q!}: {quest#}
{#Constraint:|Description:|!} The {#Molecule|Compound|Chemical!} {#has the|can be represented with the!} {SMILES__description} {SMILES#}.
{#Answer|Result|Answer!}: {answ#}
[Rb]
[Rb]
rubidium
Please describe this drug.
Rubidium atom is an alkali metal atom.