What are the keywords in the following sentence? fireworks explode over roman structure as part of the celebrations of anniversary as an unified state
celebration, firework, part, structure

What are the keywords in the following sentence? player reacts during a match .
match, player, react

What are the keywords in the following sentence? this is quite a beautiful handcrafted pair of topaz and blue earrings .
earring, pair, topaz

What are the keywords in the following sentence? soldiers stand at attention during a ceremony to celebrate independence day
attention, day, stand