Assertion: paramecium | /r/CapableOf | come across obstacle
Facets:
Source sentences:
text: If Paramecium comes across an obstacle, it stops, reverses the beating of the cilia, swims backwards, turns through an angle and moves forward again on a slightly different course .
text: If the Paramecium comes upon an obstacle, it stops, swims backwards, and then angles itself forward on a slightly different course.
text: If Paramecium comes across an obstacle, it stops, reverses the beating of the cilia, swims backwards, turns through an angle and moves forward again on a slightly different course.