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_50 (position VARCHAR, player VARCHAR, nationality VARCHAR, jersey_number_s_ VARCHAR)

### Question ###
What is Postition, when Nationality is United States, when Jersey Number(s) is 12, and when Player is Tom Black Category:Articles With hCards?

### Accurate SQL ###

SELECT position FROM table_name_50 WHERE nationality = "united states" AND jersey_number_s_ = "12" AND player = "tom black category:articles with hcards"