Assertion: euglena | /r/CapableOf | form green scum
Facets:
value: sometimes
type: TEMPORAL
value: on stagnant water
type: LOCATION
Source sentences:
text: Amoeba refers to a single-celled animal that catches food and moves about by extending fingerlike projections of protoplasm while euglena refers to a green single-celled freshwater organism with a flagellum, sometimes forming a green scum on stagnant water.