I want to know the answer to the following question:
What party did  Lithuania's Communist Party break apart from?
All the background I'm provided with is that "On December 7, 1989, the Communist Party of Lithuania under the leadership of Algirdas Brazauskas, split from the Communist Party of the Soviet Union and abandoned its claim to have a constitutional "leading role" in politics.". Is that enough to answer the question?
Answer: yes