Conversation so far:
When was World War II over?
1945
Who were the leaders in Poland post-World War II?
Wladyslaw Gomułka was a deputy prime minister in the Provisional Government of the Republic of Poland from January-June 1945, and the Provisional Government of National Unity from 1945-1947.
What politics resulted from World War II in Poland?
Using his position in the PPR and government, Wladyslaw Gomułka led the leftist social transformations in Poland and participated in the crushing of the resistance to the communist rule.
Were there people that opposed Władysław Gomułka?
In the late 1940s, Poland's communist government was split by a rivalry between Władysław Gomulka and Bolesław Bierut.

Question: What resulted from the rivalry?
Self-contained rewrite: What resulted from the rivalry between Władysław Gomulka and Bolesław Bierut?