Coming is related to Base. Base is a type of Location. Location is related to School. 
Motion is a type of Software. Blast is a type of Software. Blast is a type of Explosion. Explosion is a synonym of Boom. 
Coming <--RelatedTo--> Base --IsA--> Location <--RelatedTo--> School 
Motion --IsA--> Software <--IsA-- Blast --IsA--> Explosion <--Synonym--> Boom 