Pant is related to Corn. Corn is a type of Product. 
Mechanic is related to Job. Job is related to Learn. you would Learn because Fun. Fishing can be used for Fun. 
Pant <--RelatedTo--> Corn --IsA--> Product 
Mechanic <--RelatedTo--> Job <--RelatedTo--> Learn --MotivatedByGoal--> Fun <--UsedFor-- Fishing 