Assertion: paramecium | /r/HasProperty | first ciliates
Facets:
value: in the late 17th century
type: TEMPORAL
Source sentences:
text: Paramecia were among the first ciliates to be seen by microscopists, in the late 17th century.
text: Paramecia were among the first ciliates to be seen by microscopists, in the late 17th century.