Element is related to Fire. Fire is related to High. High is related to Hurricane. Hurricane is related to Rain. 
Proof is a type of Explanation. Explanation is a type of Statement. Statement can be True. 
Element <--RelatedTo--> Fire <--RelatedTo--> High <--RelatedTo--> Hurricane <--RelatedTo--> Rain 
Proof --IsA--> Explanation --IsA--> Statement --HasProperty--> True 