What are the keywords in the following sentence? a blender full of liquid is spilling everywhere
blender, liquid, spill

What are the keywords in the following sentence? solving a problem about an unknown number
number, problem, solve

What are the keywords in the following sentence? a crop of broad beans being grown on a farm
crop, farm, grow

What are the keywords in the following sentence? arch bridge over tourist attraction links a city and museum on the south bank
bank, city, link