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_76 (initial_syllable_open_semi_open_unstressed_vowels VARCHAR)

### Question ###
What is 17th c., when Initial-Syllable Open/Semi-Open Unstressed Vowels is "o /ɵ/"?

### Accurate SQL ###

SELECT 17 AS th_c FROM table_name_76 WHERE initial_syllable_open_semi_open_unstressed_vowels = "o /ɵ/"