['compartment', 'fill', 'EmptyParameter', 'gas', 'with']
["Synset('amorphous_shape.n.01')", 'other_cos-45.4', 'EmptyParameter', "Synset('matter.n.03')", 'with']
The compartment is being filled with hexafluorine gas.
the Synset('amorphous_shape.n.01') is being filled with hexafluorine Synset('matter.n.03').