Assertion: tourmaline's pole | /r/HasProperty | electric
Facets:
Source sentences:
text: In view of the above literature and research, the present inventor is the first to discover that tourmaline has electric poles corresponding to the magnetic poles of a permanent magnet.
text: In view of the above literature and research, the present inventor is the first to discover that tourmaline has electric poles corresponding to the magnetic poles of a permanent magnet.
text: In view of the above literature and research, the present inventor is the first to discover that tourmaline has electric poles corresponding to the magnetic poles of a permanent magnet.