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_86 ( normal_environment_of_occurrence__in_native_words_ VARCHAR, proto_germanic_origin VARCHAR )

### Question ###
what is the normal environment of occurrence that has a Proto-Germanic origin /ai/

### Accurate SQL ###

SELECT normal_environment_of_occurrence__in_native_words_ FROM table_name_86 WHERE proto_germanic_origin = "/ai/"