What are the keywords in the following sentence? a living room filled with lots of natural sunlight .
fill, lot, room, sunlight

What are the keywords in the following sentence? working tug boat guiding a large container ship through the narrow entrance of harbour
boat, entrance, guide, ship, work

What are the keywords in the following sentence? altar built for dimension said by religious leadership role and religious leader
build, leader, say

What are the keywords in the following sentence? lights with strong beams in the dark
beam, dark, light