What are the keywords in the following sentence? a herd of sheep on meadow
herd, meadow, sheep

What are the keywords in the following sentence? little boy buddhist monk in the orange robe praying .
monk, pray, robe

What are the keywords in the following sentence? fishermen sitting on their boat in the late afternoon harbour
boat, harbour, sit

What are the keywords in the following sentence? flow diagram of the system working in winter
diagram, system, work