CREATE TABLE table_17733 ("Program" CLOB, "Degree" CLOB, "Focus" CLOB, "Teaching language" CLOB, "Duration  ( years ) " CLOB, "full-time/part-time" CLOB, "ECTS Credit Points" FLOAT)

What is the teaching language with the duration (years) 3.5?
SELECT "Teaching language" FROM table_17733 WHERE "Duration (years)" = '3.5'
SELECT "Teaching language" FROM "table_17733" WHERE "Duration (years)" = '3.5'