['crew', 'converge', 'EmptyParameter', 'opening', 'at']
["Synset('unit.n.03')", 'meander-47.7', 'EmptyParameter', "Synset('order.n.15')", 'at']
The crew converge at a cave opening.
the Synset('unit.n.03') converge at a Synset('object.n.01') Synset('order.n.15').