Assertion: phosphine | /r/HasProperty | pure
Facets:
Source sentences:
text: The phosphine produced in accordance with the invention may be so pure that it can be used for semiconductor doping.
text: The phosphine produced in accordance with the invention may be so pure that it can be used for semiconductor doping.
text: The phosphine produced in accordance with the invention may be so pure that it can be used for semiconductor doping.
text: The phosphine produced in accordance with the invention may be so pure that it can be used for semiconductor doping.