Input: Identify the most salient words:

group of tourist visiting old ruins on a hill

Output: ruin
tourist
visit

Input: Identify the most salient words:

full hd time lapse of clouds moving across the sky during evening

Output: cloud
evening
move

Input: Identify the most salient words:

elderly man with glasses looking away and thinking .

Output: glass
look
thinking

Input: Identify the most salient words:

makes the tackle on american football player during the second quarter .

Output:
player
quarter
tackle