stem: student read book
choice: do some exercise do cool-down
choice: play guitar strum string
choice: forest tree
choice: cat chase mouse
choice: chair wood
choice: planet orbit
choice: sleep you be tire
choice: earth world
choice: meet person make new friend
choice: round trip ticket travel
choice: enjoy film buy ticket
choice: crime serve justice
choice: salt salty
choice: heart love
choice: head body
choice: basketball fill with air
choice: child play game
choice: chase mouse cat
choice: computer machine