Assertion: flatcar | /r/HasProperty | coupled in train
Facets:
Source sentences:
text: "a freight-laden trailer secured to a flatcar, which in turn is coupled in a train being drawn by a locomotive
text: In that case, the Commission described TOFC or piggyback service as transportation of 'a freight-laden trailer secured to a flatcar, which in turn is coupled in a train being drawn by a locomotive over steel rails laid on the railroad's right-of-way