Classification in FSRM

This is for Win Server 2008 R2.

Suppose I use FSRM to classify a file f1 to have a classification property p1.
What command line or powershell cmdlet can I use to get:
(1) list of all classification properties and property values of f1?
(2) a list of files inside a specific folder containing property p1 with a specific property value?

Thanks.