Crew is related to Ship. you are likely to find Cargo in/at/on Ship. Cargo is related to Aircraft. Aircraft is derived from Craft. 
Statistics can Prove. Prove is related to Demonstrate. Demonstrate is a synonym of Indicate. Indicate is a synonym of Mean. 
Crew <--RelatedTo--> Ship <--AtLocation-- Cargo <--RelatedTo--> Aircraft --DerivedFrom--> Craft 
Statistics --CapableOf--> Prove <--RelatedTo--> Demonstrate <--Synonym--> Indicate <--Synonym--> Mean 