Learn has a sub-event of listen. Play harp does not have a sub-event of become absorb. Play harp does not have a sub-event of feel strong. Play harp has a sub-event of listen. Listen has a sub-event of learn. Listen does not have a sub-event of feel strong. Hear music has a sub-event of listen. Celebrate has a sub-event of scandal. View video does not have a sub-event of scandal. Listen is utilised in solve problem. Listen has a sub-event of pay attention. View video does not have a sub-event of pay attention.
Play harp has a sub-event of learn.