Problem: What are the most important words?
rugby player in action for country on day of the tournament .
Answer: action, player, tournament

Problem: What are the most important words?
map from which users can select the district in which they want to browse hospitals .
Answer: hospital, map, select, user, want

Problem: What are the most important words?
tractor and combine harvester collecting the grain during harvesting england
Answer:
collect, grain, harvester, tractor