Produce a sentence which mentions all of these concepts: field, vegetation, zebra

Two zebras on a field with green vegetation

Produce a sentence which mentions all of these concepts: couch, mom, tickle

Two toddlers are rolling around on a couch as their mom tickles them.

Produce a sentence which mentions all of these concepts: end, race, rider
returning rider at the end of race whilst riders wait for the next race to start