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: burmese units of measurement is the unit of length in what? 
Knowledge Triplets: Burmese units of measurement, measurement_unit.distance_unit.measurement_system, Furlong
Burmese units of measurement, measurement_unit.measurement_system.length_units, Furlong
Furlong, measurement_unit.distance_unit.measurement_system, English units
Imperial unit system, measurement_unit.measurement_system.length_units, Furlong
Furlong, measurement_unit.distance_unit.measurement_system, Imperial unit system
furlong.noun.01, base.wordnet.synset.equivalent_topic, Furlong
Furlong, measurement_unit.distance_unit.measurement_system, Burmese units of measurement
Furlong, measurement_unit.distance_unit.distance_in_meters, 201.168
Length, measurement_unit.dimension.units, Furlong
English units, measurement_unit.measurement_system.length_units, Furlong
Furlong, user.avh.default_domain.ellerdale_topic.ellerdale_id, 0080-6aca

Answer: Furlong