If the rowers are synchronized and have the same amount of force behind each paddle, then the canoe will travel much more smoothly.
(the rowers; are synchronized; ) (the rowers; have; the same amount of force behind each paddle) (the canoe; will travel much more smoothly; T:then)
the rowers the rowers the canoe
are synchronized have will travel much more smoothly
the same amount of force behind each paddle
T:then