Ultimate is a type of Quality. Asset is a type of Quality. Asset is a type of Aircraft. 
Button is related to Pass. Slip is a type of Pass. Slip is related to Short. Short is related to Crop. 
Ultimate --IsA--> Quality <--IsA-- Asset --IsA--> Aircraft 
Button <--RelatedTo--> Pass <--IsA-- Slip <--RelatedTo--> Short <--RelatedTo--> Crop 