['dust', 'begin', 'contaminate', 'EmptyParameter', 'EmptyParameter'] ['dust', 'contaminate', 'field', 'EmptyParameter', 'EmptyParameter']
["Synset('material.n.01')", 'begin-55.1', 'fill-9.8', 'EmptyParameter', 'EmptyParameter'] ["Synset('material.n.01')", 'fill-9.8', "Synset('percept.n.01')", 'EmptyParameter', 'EmptyParameter']
Interstellar dust begins to contaminate the warp field.
Synset('interstellar.a.01') Synset('material.n.01') begins to contaminate the Synset('cord.n.01') Synset('percept.n.01').