What are the keywords in the following sentence? trail in the forest filled with snow .
fill, forest, trail

What are the keywords in the following sentence? hang elegant ornaments and crystals from the chandelier
chandelier, hang, ornament

What are the keywords in the following sentence? grand exploration of a satellite into orbit around earth .
earth, orbit, satellite

What are the keywords in the following sentence? football player looks dejected on the pitch after the match
look, match, pitch, player