What are the keywords in the following sentence? biological species curled up at dusk to sleep for the evening in a cold winter snow
dusk, evening, sleep, snow, specie

What are the keywords in the following sentence? Simple pizza being cut and distributed to diners.
cut, distribute, pizza

What are the keywords in the following sentence? a large wind turbine in a field produces electricity
electricity, field, turbine

What are the keywords in the following sentence? soccer player reacts after clashing heads during the match .
clash, match, player