Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_15 (proto_germanic_origin VARCHAR, sound__allophone_ VARCHAR)

### Question ###
What is the Proto-Germanic origin associated with an allophone of [[[|k]]]?

### Accurate SQL ###

SELECT proto_germanic_origin FROM table_name_15 WHERE sound__allophone_ = "[[[|k]]]"