['way', 'be', 'jettison', 'EmptyParameter', 'EmptyParameter'] ['way', 'jettison', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter'] ['what', 'achieve', 'buoyancy', 'EmptyParameter', 'EmptyParameter'] ['what', 'float', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter']
["Synset('concept.n.01')", 'seem-109', 'jettison', 'EmptyParameter', 'EmptyParameter'] ["Synset('concept.n.01')", 'jettison', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter'] ['what', 'complete-55.2', "Synset('disposition.n.04')", 'EmptyParameter', 'EmptyParameter'] ['what', 'run-51.3.2', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter']
Without thrusters, the only way is to jettison what they can to achieve positive buoyancy and float up.
without thrusters, the only Synset('concept.n.01') is to jettison what <PRP> can to achieve Synset('positive.a.08') Synset('disposition.n.04') and float up.