What are the keywords in the following sentence? a family having a picnic beside a lake
family, lake, picnic

What are the keywords in the following sentence? the fisherman has moved further down the bank and the rain has intensified
intensify, move, rain

What are the keywords in the following sentence? vessels were involved in the drills in waters .
drill, vessel, water

What are the keywords in the following sentence? The spire with the clock faces reaches towards the sky.
clock, sky, spire