Assertion: semiconductor | /r/HasProperty | germanium
Facets:
Source sentences:
text: The most widely used semiconductors are Silicon, Germanium and Gallium-Arsenide.
text: Few other materials used in making semiconductor are germanium, gallium arsenide, and silicon carbide.
text: Semiconductors can be pure elements, such as silicon or germanium, or compounds such as gallium arsenide or cadmium selenide.