Assertion: breaststroke | /r/HasProperty | the oldest known stroke
Facets:
value: very
type: DEGREE
Source sentences:
text: The breaststroke is the oldest known stroke and is one of four commonly used by recreational and competitive swimmers.
text: The breaststroke is the oldest swimming style already known in ancient times, and also the most technically difficult.
text: Breaststroke is a very old and traditional stroke.