Phone is related to Receiver. Receiver is a synonym of Recipient. Host is a type of Recipient. 
you are likely to find Bedroom in/at/on Apartment. Apartment is related to Home. Home is related to Go. Go is related to Retreat. 
Phone <--RelatedTo--> Receiver <--Synonym--> Recipient <--IsA-- Host 
Bedroom --AtLocation--> Apartment <--RelatedTo--> Home <--RelatedTo--> Go <--RelatedTo--> Retreat 