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: what unit of moment of force is the si base unit of torque curve? 
Knowledge Triplets: m.09kllys, base.ontologies.ontology_instance_mapping.freebase_topic, Torque
Torque, measurement_unit.dimension.units, Kilogram meter
Torque, measurement_unit.dimension.instruments, de Prony brake
Torque, base.skosbase.skos_concept.equivalent_topic, Torque
Torque, base.skosbase.skos_concept.in_scheme, Authorities Concept Scheme
Rotational motion (Rigid dynamics), base.skosbase.skos_concept.narrower, Torque
Torque, base.skosbase.skos_concept.broader, Rotational motion (Rigid dynamics)
Torque, measurement_unit.dimension.si_base_unit, Newton metre
m.07vn7ph, base.yupgrade.user.topics, Torque
Newton metre, measurement_unit.force_moment_unit.measurement_system, International System of Units
Foot-pound, measurement_unit.force_moment_unit.moment_in_newton_meters, 1.35581795
Torque, base.skosbase.skos_concept.in_scheme, Topical Terms Concept Scheme
Torque (nm), type.property.unit, Newton metre
Torque, measurement_unit.dimension.units, Ounce-force inch
Torque, base.skosbase.skos_concept.broader, Mechanics
adding oz·in units?, community.discussion_thread.topic, Torque
Torque, base.skosbase.vocabulary_equivalent_topic.equivalent_concept, Torque
International System of Units, measurement_unit.measurement_system.force_moment_units, Newton metre
Torque, base.ontologies.ontology_instance.equivalent_instances, m.09kllys
Ounce-force inch, measurement_unit.force_moment_unit.moment_in_newton_meters, 0.007061552
Torque, measurement_unit.dimension.units, Inch-pound
Foot-pound, measurement_unit.force_moment_unit.measurement_system, English units
OpenCyc, base.ontologies.ontology.equivalent_instances, m.09kllys
Torque, type.property.unit, Newton metre
Mechanics, base.skosbase.skos_concept.narrower, Torque
Moment in newton meters, type.property.unit, Newton metre
Wired, base.yupgrade.user.topics, Torque
Torque, user.avh.default_domain.ellerdale_topic.ellerdale_id, 0080-03d9
Newton metre, measurement_unit.force_moment_unit.moment_in_newton_meters, 1.0
English units, measurement_unit.measurement_system.force_moment_units, Foot-pound
de Prony brake, measurement_unit.measuring_instrument.dimension_measured, Torque
Torque, base.skosbase.skos_concept.narrower, Hydraulic torque converters
Torque, type.property.unit, Foot-pound
Hydraulic torque converters, base.skosbase.skos_concept.broader, Torque
Torque, measurement_unit.dimension.units, Newton metre
Torque, measurement_unit.dimension.units, Foot-pound
oz·in ?, community.discussion_thread.topic, Torque
m.0qpqg1z, dataworld.gardening_hint.last_referenced_by, Torque
m.09vj0j7, base.yupgrade.user.topics, Torque
Torque @ 4.8 VDC, type.property.unit, Ounce-force inch

Answer: Newton metre