Assertion: ship's speed | /r/HasProperty | possible
Facets:
value: for 20–30 minutes
type: TEMPORAL
Source sentences:
text: Sprinting speeds of up to 10 knots were possible, but only for a few minutes and would tire the crew quickly.
text: A sprint speed of up to 7 knots was possible for 20–30 minutes, but risked exhausting the rowers completely.