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 speed unit shares the same measurement system with stilb? 
Knowledge Triplets: Luminance, measurement_unit.dimension.units, Lambert
Centimetre–gram–second system of units, measurement_unit.measurement_system.charge_units, Abcoulomb
Centimetre–gram–second system of units, measurement_unit.measurement_system.magnetic_field_strength_units, Oersted
Centimetre–gram–second system of units, user.movgp0.default_domain.measurement_system.base_units, Kelvin
Gram per cubic centimetre, measurement_unit.unit_of_density.measurement_system, Centimetre–gram–second system of units
Stilb, measurement_unit.luminance_unit.measurement_system, Centimetre–gram–second system of units
Luminance, measurement_unit.dimension.units, Foot-lambert
Gauss, measurement_unit.magnetic_flux_density_unit.measurement_system, Centimetre–gram–second system of units
Gal, measurement_unit.acceleration_unit.measurement_system, Centimetre–gram–second system of units
Centimetre–gram–second system of units, measurement_unit.measurement_system.density_units, Gram per cubic centimetre
Centimetre–gram–second system of units, user.movgp0.default_domain.measurement_system.unit_of_lenght, Centimeter
Centimetre–gram–second system of units, measurement_unit.measurement_system.energy_units, Erg
Centimetre–gram–second system of units, base.schemastaging.context_name.pronunciation, g.125_mqyp3
Statcoulomb, measurement_unit.charge_unit.measurement_system, Centimetre–gram–second system of units
Barye, measurement_unit.pressure_unit.measurement_system, Centimetre–gram–second system of units
Oersted, measurement_unit.magnetic_field_strength_unit.measurement_system, Centimetre–gram–second system of units
Centimetre–gram–second system of units, measurement_unit.measurement_system.magnetic_flux_density_units, Gauss
Centimetre–gram–second system of units, user.movgp0.default_domain.measurement_system.unit_of_time, Second
cgs.noun.01, base.wordnet.synset.equivalent_topic, Centimetre–gram–second system of units
Abcoulomb, measurement_unit.charge_unit.measurement_system, Centimetre–gram–second system of units
Centimetre–gram–second system of units, measurement_unit.measurement_system.current_units, Abampere
Abampere, measurement_unit.current_unit.measurement_system, Centimetre–gram–second system of units
Centimetre–gram–second system of units, user.movgp0.default_domain.measurement_system.unit_of_temperature, Kelvin
m.0h7jk8x, dataworld.gardening_hint.last_referenced_by, Centimetre–gram–second system of units
Luminance, measurement_unit.dimension.units, Candela per square metre
Stilb, measurement_unit.measurement_system.luminance_units, Centimetre–gram–second system of units
Centimetre–gram–second system of units, user.movgp0.default_domain.measurement_system.unit_of_mass, Gram
Luminance, measurement_unit.dimension.si_base_unit, Candela per square metre
Centimetre–gram–second system of units, measurement_unit.measurement_system.charge_units, Statcoulomb
Centimetre–gram–second system of units, measurement_unit.measurement_system.acceleration_units, Gal
Centimetre–gram–second system of units, user.movgp0.default_domain.measurement_system.base_units, Second
Centimetre–gram–second system of units, measurement_unit.measurement_system.length_units, Centimeter
Centimeter, measurement_unit.distance_unit.measurement_system, Centimetre–gram–second system of units
Centimetre–gram–second system of units, measurement_unit.measurement_system.luminance_units, Stilb
Centimetre–gram–second system of units, measurement_unit.measurement_system.pressure_units, Barye
Luminance, base.schemastaging.context_name.pronunciation, g.125_ryr1b
Stilb, measurement_unit.luminance_unit.luminance_in_candelas_per_square_meter, 10000.0
Centimetre–gram–second system of units, user.movgp0.default_domain.measurement_system.base_units, Gram
Erg, measurement_unit.energy_unit.measurement_system, Centimetre–gram–second system of units
Centimetre per second, measurement_unit.speed_unit.measurement_system, Centimetre–gram–second system of units
Centimetre–gram–second system of units, user.movgp0.default_domain.measurement_system.base_units, Centimeter
Centimetre–gram–second system of units, measurement_unit.measurement_system.speed_units, Centimetre per second
Luminance, measurement_unit.dimension.units, Stilb

Answer: Centimetre per second