What are the keywords in the following sentence? ancient stone carving on a temple .
carve, stone, temple

What are the keywords in the following sentence? friends hanging out on a summer day
day, friend, hang

What are the keywords in the following sentence? bumblebee big flying to the yellow flowers at garden
bumblebee, flower, fly

What are the keywords in the following sentence? The engine of a train pulling many cars
engine, pull, train