Amendment is related to Changing. Changing is related to Influence. Influence is related to Effect. Effect is related to Reason. 
Scenario is etymologically related to Scene. Scene is related to Picture. 
Amendment <--RelatedTo--> Changing <--RelatedTo--> Influence <--RelatedTo--> Effect <--RelatedTo--> Reason 
Scenario --EtymologicallyRelatedTo--> Scene <--RelatedTo--> Picture 