Assertion: lectern | /r/ObjectUse | used by college professors
Facets:
value: during classes
type: TEMPORAL
value: during speaking engagements
type: TEMPORAL
value: sometimes
type: TEMPORAL
Source sentences:
text: Lecterns are used by college professors, lecturers, politicians, preachers and other speakers who address large gatherings.
text: A lectern is sometimes used by college professors or professional speakers during classes or speaking engagements.