Assertion: stroke | /r/ObjectUse | used for training
Facets:
value: often
type: TEMPORAL
value: by amputees
type: OTHER
Source sentences:
text: It is possible, however, to swim by moving only legs without arms or only arms without legs; such strokes may be used for special purposes, for training or exercise, or by amputees (paralympians) and paralytics.
text: These strokes are often used for training.