\(PM\), \(QN\) and \(RO\) are the medians of the triangle \(PQR\).  Using the symbols \(<, >\) and \(=\) make the following statements true.
 
Test_1_1.png
 
Select the suitable symbol:
 
\(PR\)    \(PQ+QR\)
 
\(PQ - PR\)   \(QR\)
 
\(PO\)  \(OQ\)
 
\(PQ+QR+RO\)  \(2PM\)