Assertion: magnetic field | /r/HasProperty | found for example
Facets:
value: in a tokamak
type: LOCATION
Source sentences:
text: magnetic field occurs in a doughnut-shaped coil, the electric current spiraling around the tube-like surface, and is found, for example, in a tokamak.
text: magnetic field is generated by a current flowing in a ring, and is found, for example, in a tokamak.