At first people may have had to supplement the food they produced with food they procured by hunting and foraging, but gradually the dependence on wild food resources may have lessened as domesticated plants and animals increased in quantity and improved in quality.
(gradually the dependence on wild food resources; may have lessened; as domesticated plants and animals) (the food; produced; they) (food; procured; they) (gradually the dependence on wild food resources; increased; ) (food; by hunting; )
gradually the dependence on wild food resources the food food gradually the dependence on wild food resources food
may have lessened produced procured increased by hunting
as domesticated plants and animals
they
they