Comfortable is related to Chair. Chair is related to Basic. Basic is related to Reading. Poem can be used for Reading. 
Private is a type of Rocket. you are likely to find Rocket in/at/on Orbit. 
Comfortable <--RelatedTo--> Chair <--RelatedTo--> Basic <--RelatedTo--> Reading <--UsedFor-- Poem 
Private --IsA--> Rocket --AtLocation--> Orbit 