What are the keywords in the following sentence? incense being burnt in a temple
burn, incense, temple

What are the keywords in the following sentence? alone elephant from the vast herds grazing in african savannah
elephant, graze, herd

What are the keywords in the following sentence? football player claims it is easier to be appointed manager than one of elite clubs
appoint, claim, player

What are the keywords in the following sentence? A man skis down a mountain on a snowy day.
day, mountain, ski