Assertion: railroad | /r/CapableOf | expand one of the key issues
Facets:
Source sentences:
text: As railways developed and expanded one of the key issues to be decided was that of the rail gauge (the distance between the two rails of the track) which should be used. ...
text: As railways developed and expanded one of the key issues to be decided was that of the rail gauge (the distance between the two rails of the track) which should be used. ...