stem: answer question know answer
choice: water plant get water
choice: flute instrument
choice: cup plastic
choice: earth universe
choice: have haircut short hair
choice: copy machine office
choice: happiness sing
choice: parent child
choice: get water water plant
choice: basketball fill with air
choice: sing you be happy
choice: fan cool off
choice: earth world
choice: dove peace
choice: play chess win
choice: take shower dry off
choice: person ride horse
choice: animal alive
choice: sailor tie knot