What are the keywords in the following sentence? soccer player of battles with footballer during the match .
battle, footballer, match, player

What are the keywords in the following sentence? sunrise at sunni islamic place of worship .
place, sunrise, worship

What are the keywords in the following sentence? sunrise time lapse from night to day as sun rises above horizon
horizon, lapse, night, rise

What are the keywords in the following sentence? example solve for x to find the missing lengths of the right triangle .
find, length, triangle