What are the keywords in the following sentence? builder is the light of the world a light no darkness can put out .
builder, darkness, light

What are the keywords in the following sentence? cool off in our watering hole as you watch elephants play in theirs .
cool, elephant, hole

What are the keywords in the following sentence? can you classify this triangle by its sides and angles
angle, classify, triangle

What are the keywords in the following sentence? volunteers serve a thanksgiving meal to kids and their families on friday .
meal, serve, thanksgive, volunteer