```xml <result> <column_name>table_concentration</column_name> <family>additive</family> <subtype>intensive_additive</subtype> <confidence>0.85</confidence> <requires_user_confirmation>false</requires_user_confirmation> <sum_meaningful>false</sum_meaningful> <signed>false</signed> <reducers> <primary_reducer>mean</primary_reducer> <valid_reducers>mean, min, max, median, distribution</valid_reducers> <excluded_reducers>sum (summing a concentration/intensity is meaningless), product (not a ratio)</excluded_reducers> <average_semantics>arithmetic_mean</average_semantics> </reducers> <inner_outer_measure> <inner_measure_reducer>min</inner_measure_reducer> <outer_measure_reducer>max</outer_measure_reducer> </inner_outer_measure> <multiplicative_partner_derivable>false</multiplicative_partner_derivable> <reasoning> Gate prior: DIMENSION table with no sequence axis makes multiplicative highly implausible. The name "concentration" is a classic intensive measure (a density/proportion at a point, not an accumulating quantity). While the median is 1.0 and mean is 0.87 (near 1.0), the range [0.20, 1.0] represents bounded proportions/fractions, not ratios that compound. Concentration measures are intensive levels where averaging is meaningful but summing is not. The negative log_symmetry_gain confirms this is not a multiplicative ratio. Classified as intensive_additive with high confidence. </reasoning> <table_type_conflict>false</table_type_conflict> </result> ```