['sulfide', 'start', 'accumulate', 'EmptyParameter', 'EmptyParameter']
["Synset('chemical.n.01')", 'begin-55.1', 'herd-47.5.2', 'EmptyParameter', 'EmptyParameter']
Ammonium sulfide starts accumulating in the atmosphere.
Synset('binary_compound.n.01') Synset('chemical.n.01') starts accumulating in the Synset('unit_of_measurement.n.01').