Dance has a sub-event of trip. Go to party does not have a sub-event of die of heart attack. Go to party has a sub-event of dance. Go to party does not have a sub-event of smile more often. Dance has a sub-event of listen to music. Dance does not have a sub-event of die of heart attack. Walk has a sub-event of we see doctor. Walk does not have a sub-event of trip. Grow vegetable has a sub-event of we see doctor. Dance gives rise to have fun. Listen to music has a sub-event of dance. Dance gives rise to become tire.
Dance does not have a sub-event of dance.