CREATE TABLE table_name_83 (social_ao VARCHAR, external_co VARCHAR, internal_co VARCHAR)

What Social AO has an External CO of simonas savickas, and an Internal CO of pieter kuijsten?
SELECT social_ao FROM table_name_83 WHERE external_co = "simonas savickas" AND internal_co = "pieter kuijsten"
SELECT "social_ao" FROM "table_name_83" WHERE "external_co" = "simonas savickas" AND "internal_co" = "pieter kuijsten"