you are likely to find Branch in/at/on Trunk. Branch is related to Large. Large is the opposite of Middle. 
Sorry is related to Live. Live is a synonym of Survive. Survive is a synonym of Exist. 
Trunk <--AtLocation-- Branch <--RelatedTo--> Large <--Antonym--> Middle 
Sorry <--RelatedTo--> Live <--Synonym--> Survive <--Synonym--> Exist 