a simple is made of one or more scavenger chemically combined
scavenger is chemical_agent. simple_chemical_decomposition is not chemical_decomposition. anserine is chemical_compound. aspartame is chemical_compound. simple is herb. breaking_chemical_bond is chemical_reaction. scavenger is not chemical_agent. simple_chemical_decomposition is chemical_decomposition. simple is not herb. methidathion is chemical_compound.