Person is related to Introduce. Introduce is a synonym of Insert. Insert is a synonym of Enter. Enter is related to Arrive. 
you are likely to find Pillow in/at/on Room. you are likely to find Pillow in/at/on Plane. 
Person <--RelatedTo--> Introduce <--Synonym--> Insert <--Synonym--> Enter <--RelatedTo--> Arrive 
Room <--AtLocation-- Pillow --AtLocation--> Plane 