Context: Congo-Brazzaville has had a multi-party political system since the early 1990s, although the system is heavily dominated by President Denis Sassou Nguesso; he has lacked serious competition in the presidential elections held under his rule. Sassou Nguesso is backed by his own Congolese Labour Party (French: Parti Congolais du Travail) as well as a range of smaller parties.

Question: What kind of political system has existed in Congo-Brazzaville since the '90s?
Answer: multi-party

Question: Which party does Sassou belong to?
Answer: Congolese Labour Party

Question: What is the French term for Sassou's political party?
Answer: Parti Congolais du Travail

Question: Since when has Congo-Brazzaville has a single party political system?
Answer: Unanswerable

Question: Who has serious competition in the presidential elections?
Answer: Unanswerable

Question: What is the Congolese Labour Party called in German?
Answer: Unanswerable

Question: What party does not back Sassou?
Answer: Unanswerable

Question: What is not dominated by Sassou?
Answer: Unanswerable