CREATE TABLE table_name_2 (proto_germanic_origin VARCHAR2, sound__phoneme_ VARCHAR2)

What is the Proto-Germanic origin of the phoneme /[[|j]]/?
SELECT proto_germanic_origin FROM table_name_2 WHERE sound__phoneme_ = "/[[|j]]/"
SELECT "proto_germanic_origin" FROM "table_name_2" WHERE "/[[|j]]/" = "sound__phoneme_"