Bend is a synonym of Bow. the last thing you do when you Sing is Bow. Church can be used for Sing. you are likely to find Alter in/at/on Church. 
Bloody is related to Wound. Wound is related to Medical. Medical is related to Care. 
Bend <--Synonym--> Bow <--HasLastSubevent-- Sing <--UsedFor-- Church <--AtLocation-- Alter 
Bloody <--RelatedTo--> Wound <--RelatedTo--> Medical <--RelatedTo--> Care 