a tree is a kind of plant & a redwood tree is a kind of tree & a giant redwood tree is a kind of redwood tree ->  a giant redwood tree is a kind of plant  a giant redwood tree is a kind of plant & green plants perform photosynthesis to get food ->  the giant redwood tree would perform photosynthesis to get food  the giant redwood tree would perform photosynthesis to get food & photosynthesis means green plants convert solar energy to food ->  the giant redwood tree performs photosynthesis to get food by converting solar energy to food  the giant redwood tree performs photosynthesis to get food by converting solar energy to food & food is a kind of chemical energy -> the giant redwood tree performs photosynthesis to get food by converting solar energy to chemical energy