Involve is a type of Refer. Submit is a type of Refer. Submit is a synonym of Bow. the last thing you do when you Perform is Bow. 
Element is related to Card. Card is related to Letter. 
Involve --IsA--> Refer <--IsA-- Submit <--Synonym--> Bow <--HasLastSubevent-- Perform 
Element <--RelatedTo--> Card <--RelatedTo--> Letter 