stem: forest tree
choice: get wet get cold
choice: gun very dangerous
choice: ear head
choice: do some exercise do cool-down
choice: talk to someone communication
choice: wing bird
choice: bird wing
choice: kayak boat
choice: crime serve justice
choice: prisoner attempt escape
choice: type have keyboard
choice: wallet purse
choice: fruit eat
choice: dog play with frisbee
choice: earth world
choice: stick wood
choice: heart love
choice: work money
choice: dream rapid eye movement