Assertion: experiment | /r/HasProperty | necessary
Facets:
value: to obtain a ph meter
type: PURPOSE
value: to advance medical and biological knowledge
type: PURPOSE
Source sentences:
text: On the other side of the debate, those in favor of animal testing held that experiments on animals were necessary to advance medical and biological knowledge.
text: There was general agreement that more experimentation was needed to check Miller's results.
text: To do this experiment, it is necessary to obtain a pH meter.