6. Determine the shape

\(D\) and \(E\) are the mid-points of the sides \(AB\) and \(AC\) of \(△ ABC\) and \(O\) is any point on side \(BC\). \(O\) is joined to \(A\). If \(P\) and \(Q\) are the mid-points of \(OB\) and \(OC\) respectively, then \(DEQP\) is