Which Tuesday Tiw/Tyr has a Sunday Sunna/Sol of sondag?
CREATE TABLE "germanic_tradition" (
  "sunday_sunna_s_l" text,
  "monday_mona_m_ni" text,
  "tuesday_tiw_tyr" text,
  "wednesday_woden_odin" text,
  "thursday_thunor_thor" text,
  "friday_frige_or_freya" text,
  "saturday_saturn" text
);
SELECT "tuesday_tiw_tyr" FROM "germanic_tradition" WHERE "sunday_sunna_s_l"='sondag';