What are the keywords in the following sentence? the gnarled roots and trunk of an eucalyptus tree growing next .
gnarl, grow, tree

What are the keywords in the following sentence? the rocket is being raised into vertical position ...
position, raise, rocket

What are the keywords in the following sentence? biological species perched on a rotten tree stump covered in moss
cover, moss, perch

What are the keywords in the following sentence? the guest of honour touring the mini booths at the event
event, guest, tour