Mailman deliver mail has a sub-event of checkmate. Smile is motivated by goal you be happy. Dream has a sub-event of smile. Be sleep has a sub-event of dream. Watch tv show has a sub-event of fall asleep. Fall asleep does not have a sub-event of gain insight. Dream gives rise to nightmare. Fall asleep has a sub-event of dream. Watch tv show does not have a sub-event of gain insight. Draw has a sub-event of work facial muscle. Smile has a sub-event of work facial muscle. Draw does not have a sub-event of checkmate. Watch tv show does not have a sub-event of you win money.
Dream has a sub-event of smile.