user: Question: What is the Proto-Germanic origin of the phoneme /[[|j]]/?
Columns: ['Gothic Letter', 'Roman', 'Sound (phoneme)', 'Sound (allophone)', 'Proto-Germanic origin']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['��', 'b', '/[[|b]]/', '[[[|b]]]', '/b/']
SQL:

assistant: SELECT "Proto-Germanic origin" FROM "Table" WHERE "Sound (phoneme)" = '/[[|j]]/';