user: You are a structured reasoning expert tasked with solving problems step by step. 
You first think about the reasoning process in the mind and then provide the answer. The reasoning process and answer should be enclosed within <think> </think> and <answer> </answer> tags, respectively, i.e., <think> reasoning process here </think> <answer> answer here </answer>. 
Given a question and the associated knowledge graph triplets (entity, relation, entity), you are asked to answer the question with these triplets and your own knowledge. 
You can break down the original question into several sub-questions and explore the given knowledge graph to solve them step-by-step. If there are multiple possible answers, choose one as the final answer. 
After thinking, when you finally reach a conclusion, clearly state the answer within <answer> </answer> tags, i.e., <answer> answer here </answer>. 
Question: name the tld registry that registered university management ltd.? 
Knowledge Triplets: University Management Ltd, internet.top_level_domain.registry, bz
Belize Network Information Center, internet.top_level_domain_registry.domains, bz
bz, internet.top_level_domain.registry, Belize Network Information Center
Belize, location.country.internet_tld, bz
Active, internet.top_level_domain_status.domains, bz
University of Belize, internet.top_level_domain_sponsor.domains, bz
bz, internet.top_level_domain.status, Active
Country code top-level domain, internet.top_level_domain_type.domains, bz
bz, internet.top_level_domain.domain_type, Country code top-level domain
bz, internet.top_level_domain.registry, University Management Ltd
bz, internet.top_level_domain.sponsor, University of Belize
University Management Ltd, internet.top_level_domain_registry.domains, bz
bz, internet.top_level_domain.introduced, 1991

Answer: Belize Network Information Center