Assertion: apparition | /r/CapableOf | offer wide field
Facets:
value: for research
type: PURPOSE
Source sentences:
text: Apparitions of the living also offer a wide field for research, perhaps the most favored hypothesis being that of telepathic hallucination.
text: Apparitions of the living also offer a wide field for research, perhaps the most favored hypothesis at the present day being that of the telepathic hallucination.