Have fun has a sub-event of visit friend. Take phone call has a sub-event of have conversation. Act strange has a sub-event of nod and smile. Have fun does not have a sub-event of hit bullseye. Visit friend has a sub-event of have conversation. Act strange does not have a sub-event of read textbook. Compute does not have a sub-event of hit bullseye. Compute has a sub-event of have fun. Leave fall off tree has a sub-event of read textbook. Have conversation has a sub-event of nod and smile. Compute does not have a sub-event of use your brake.
Compute does not have a sub-event of visit friend.