As water vapor rises to the crests, it is cooled and condenses out as water droplets, the stuff of clouds.
(water vapor; rises; to the crests) (it; is cooled; T:As water vapor rises to the crests) (it; condenses out; T:As water vapor rises to the crests)
water vapor it it
rises is cooled condenses out
to the crests
T:As water vapor rises to the crests
T:As water vapor rises to the crests