Which Monday Mona/Mani also had a Thursday Thunor/Thor of Tongersdei?
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 "monday_mona_m_ni" FROM "germanic_tradition" WHERE "thursday_thunor_thor"='tongersdei';