Meaning is related to May. May is related to Allow. Allow is related to Permit. 
Hand is related to Wash. Wash is related to Activity. Activity is related to Fly. 
Meaning <--RelatedTo--> May <--RelatedTo--> Allow <--RelatedTo--> Permit 
Hand <--RelatedTo--> Wash <--RelatedTo--> Activity <--RelatedTo--> Fly 