you are likely to find Equity in/at/on Building. Building can Target. Target is a synonym of Mark. 
Telephone can be used for Communicate. Talk is a type of Communicate. Tone is a type of Talk. Tone is a type of Exercise. 
Equity --AtLocation--> Building --CapableOf--> Target <--Synonym--> Mark 
Telephone --UsedFor--> Communicate <--IsA-- Talk <--IsA-- Tone --IsA--> Exercise 