What are the keywords in the following sentence? Cat lying prone behind an upside down remote control.
cat, control, lie

What are the keywords in the following sentence? find all unknown values for the following triangle .
find, triangle, value

What are the keywords in the following sentence? Two cross country skiers glide across a track while competing in a biathlon.
glide, skier, track

What are the keywords in the following sentence? curved wall being constructed inside a building
building, construct, wall