Meet girl has a sub-event of recognize local custom. Order food has a sub-event of buy something. Wallking has a sub-event of recognize local custom. Wallking does not have a sub-event of walk by shop. Order food does not have a sub-event of make comparison. Go to market has a sub-event of buy something. Go to mall has a sub-event of buy something. Buy something has a sub-event of order food. Buy something gives rise to spend money. Go to mall does not have a sub-event of make comparison. Buy something does not have a sub-event of make comparison. Buy something has a sub-event of walk by shop. Go to mall does not have a sub-event of lose your voice.
Go to mall has a sub-event of buy something.