Table: anita_weiss_1973_ejc
Columns: year
tournament
venue
result
extra

Question: What tournament since 1973 has a result of 1st?
SQL: SELECT "tournament" FROM anita_weiss_1973_ejc WHERE "result" = '1st' AND "year" > 1973

Question: In what tournament was there an extra of 400 m hurdles?
SQL: SELECT "tournament" FROM anita_weiss_1973_ejc WHERE "extra" = '400 m hurdles'

Question: What was the Result in Year 1973?
SQL: SELECT "result" FROM anita_weiss_1973_ejc WHERE "year" = 1973

Question: In which year was the Tournament of european indoor championships played where the Extra was 800 m and the Result was 2nd?
SQL: SELECT "year" FROM anita_weiss_1973_ejc WHERE "extra" = '800 m' AND "tournament" = 'european indoor championships' AND "result" = '2nd'