Assertion: reconnaissance's use | /r/HasProperty | needed
Facets:
value: sometimes
type: TEMPORAL
Source sentences:
text: Sometimes, simple observation or use of a penetrometer or weighted cone that measures how deeply weights will sink into the surface are needed.
text: Sometimes, simple observation, or use of a penetrometer, or weighted cone that measures how deeply weights will sink into the surface, are needed, but these have to be done at the actual site.