```xml <result> <column_name>Health (Life Expectancy)</column_name> <family>additive</family> <subtype>intensive_additive</subtype> <confidence>0.92</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 life expectancy levels 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 column name "Health (Life Expectancy)" indicates an intensive physical level (a health/longevity metric). Values are bounded [0.0, 0.95277] with mean 0.558 and median 0.597, centered away from both 0 and 1, consistent with a normalized health index or life expectancy score. Summing life expectancy across entities is meaningless; averaging is the natural aggregation. The presence of zeros and the bounded positive range confirm this is an absolute level measure, not a ratio. </reasoning> <table_type_conflict>false</table_type_conflict> </result> ```