Injury is related to Broken. you are likely to find Broken in/at/on Trash. 
Killing is related to Garlic. Person wants (to) Garlic. Person is related to Mother. Mother is related to Wife. 
Injury <--RelatedTo--> Broken --AtLocation--> Trash 
Killing <--RelatedTo--> Garlic <--Desires-- Person <--RelatedTo--> Mother <--RelatedTo--> Wife 