While is a synonym of Patch. Patch is related to Small. Small is related to Chicken. 
Perceived is a form of Perceive. Sight is a type of Perceive. Sight is related to Abstract. Abstract is part of Patent. 
While <--Synonym--> Patch <--RelatedTo--> Small <--RelatedTo--> Chicken 
Perceived --FormOf--> Perceive <--IsA-- Sight <--RelatedTo--> Abstract --PartOf--> Patent 