Assertion: motion's motion | /r/HasProperty | possible
Facets:
value: supposedly
type: DEGREE
Source sentences:
text: Perpetual-motion machines of the third kind are those associated with a continuous motion that would supposedly be possible if hindrances like mechanical friction and electrical resistivity could be eliminated.
text: In some cases a thought (or gedanken) experiment appears to suggest that perpetual motion may be possible through accepted and understood physical processes.