What are the keywords in the following sentence? tram on railway and buildings in a construction site against sky
building, railway, site

What are the keywords in the following sentence? fishing rod and reel on the beach
beach, reel, rod

What are the keywords in the following sentence? boys studying a tree trunk with a magnifying glass
glass, magnify, study

What are the keywords in the following sentence? statue is an one of the many pieces of art
art, piece, statue