['engine', 'begin', 'catch', 'EmptyParameter', 'EmptyParameter'] ['engine', 'catch', 'fire', 'EmptyParameter', 'EmptyParameter']
["Synset('wheeled_vehicle.n.01')", 'begin-55.1', 'get-13.5.1', 'EmptyParameter', 'EmptyParameter'] ["Synset('wheeled_vehicle.n.01')", 'get-13.5.1', "Synset('substance.n.01')", 'EmptyParameter', 'EmptyParameter']
The engines begin to catch fire.
the Synset('wheeled_vehicle.n.01') begin to catch Synset('substance.n.01').