some tides eat frog & an three is a pollinating plant ->  some insects are pollinating animals that eat nectar  some reptile eat dogs & a animal is a pollinating plant ->  some birds are pollinating animals that eat nectar  some insects are pollinating animals that eat nectar & some birds are pollinating animals that eat nectar ->  some pollinating animals eat nectar  a sink of something emits / converging / generates / provides that something & a plant is a sink of top ->  a flower produces nectar  a flower produces nectar & a plant is a whole of a vegetable for attracting images / producing feature ->  a flower is a part of a plant for attracting pollinators that produces nectar  some pollinating animals eat nectar & a flower is a part of a plant for attracting pollinators that produces nectar -> nectar is used for attracting pollinators by plants