Expense is related to Travel. Automobile is a type of Travel. Engine is part of Automobile. Engine is related to Jet. 
Strike is a type of Pitch. Strike is a synonym of Assume. 
Expense <--RelatedTo--> Travel <--IsA-- Automobile <--PartOf-- Engine <--RelatedTo--> Jet 
Pitch <--IsA-- Strike <--Synonym--> Assume 