one thing you do when you Help is Thank. Thank is etymologically related to Thought. 
Product is related to Corn. Corn is related to High. High is related to Oil. Oil is related to Export. 
Help --HasSubevent--> Thank --EtymologicallyRelatedTo--> Thought 
Product <--RelatedTo--> Corn <--RelatedTo--> High <--RelatedTo--> Oil <--RelatedTo--> Export 