<parameter name="action">tool_call</parameter> <parameter name="reasoning">Normalize country spellings/casing to show the cleaned geographic distribution.</parameter> <parameter name="tool">query_sql</parameter> <parameter name="args">{"sql":"SELECT CASE WHEN Country IS NULL OR TRIM(Country)='' THEN '(blank)' WHEN LOWER(TRIM(Country)) IN ('u.k.','united kingdom') THEN 'United Kingdom' WHEN LOWER(TRIM(Country)) IN ('united states','united states of america') THEN 'United States' ELSE UPPER(SUBSTR(TRIM(Country),1,1)) || LOWER(SUBSTR(TRIM(Country),2)) END AS country_clean, COUNT(*) AS users, ROUND(100.0*COUNT(*)/SUM(COUNT(*)) OVER (),1) AS pct FROM raw.AI_Usage_and_Impact_on_Students_and_Professionals GROUP BY 1 ORDER BY users DESC","purpose":"Country distribution after cleaning casing and naming variants","source":"raw"}</parameter> </invoke>