Let ABCABC be a triangle. Its incircle ω\omega touches the sides BC,CABC, CA and ABAB at points D,ED, E and FF, respectively. Let PP and QQ be points on the line BCBC distinct from DD such that PB=BDPB = BD and QC=CDQC = CD. Prove that the circumcircles of the triangles PCEPCE and QBFQBF and the circle ω\omega pass through a common point.