Color is a type of Apologize. Color is related to Description. Description is related to Edge. Edge is related to Point. 
Sigh is related to Air. Air is related to Light. Light is related to Weigh. Weigh is related to Measurement. 
Apologize <--IsA-- Color <--RelatedTo--> Description <--RelatedTo--> Edge <--RelatedTo--> Point 
Sigh <--RelatedTo--> Air <--RelatedTo--> Light <--RelatedTo--> Weigh <--RelatedTo--> Measurement 