Lap is a type of Thigh. Lap is related to Track. Track is a type of Bar. Bar is related to Furniture. 
Explain is related to Detailed. Detailed is related to Plan. Plan is related to Draft. Acceptance is a type of Draft. 
Thigh <--IsA-- Lap <--RelatedTo--> Track --IsA--> Bar <--RelatedTo--> Furniture 
Explain <--RelatedTo--> Detailed <--RelatedTo--> Plan <--RelatedTo--> Draft <--IsA-- Acceptance 