Begin is a type of Act. Act is related to Division. Division is related to Evening. Evening is related to Afternoon. 
you are likely to find Monitor in/at/on Box. Box is related to Empty. 
Begin --IsA--> Act <--RelatedTo--> Division <--RelatedTo--> Evening <--RelatedTo--> Afternoon 
Monitor --AtLocation--> Box <--RelatedTo--> Empty 