“Rashi brings down a shita that Dina married Shimon (with whom she shared both father and mother).”
The Ba’alei (A Ba’al) Tosafos (brought in Tosafos Hashalem Otzar Peirushei Ba’alei HaTosafos) ask how Shimon could marry Dinah who was his full sister, and answers ????? ????? ??? ???? ???