Assertion: tourmaline's pole | /r/HasProperty | formed at symmetrical ends
Facets:
value: in the tourmaline crystal
type: LOCATION
Source sentences:
text: In the tourmaline crystal, the electric poles are formed at both symmetrical ends.
text: In the tourmaline crystal, the electric poles are formed at both symmetrical ends.
text: In the tourmaline crystal, the electric poles are formed at both symmetrical ends.