['officer', 'detect', 'vessel', 'bay', 'in']
["Synset('sailor.n.01')", 'see-30.1', "Synset('structure.n.04')", "Synset('angiospermous_tree.n.01')", 'in']
The officers must have detected their vessel in the launch bay.
the Synset('sailor.n.01') must have detected <PRP> Synset('structure.n.04') in the Synset('act.n.02') Synset('angiospermous_tree.n.01').