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_2781227_7 ( college_junior_club_team VARCHAR, nhl_team VARCHAR )

### Question ###
What college team did the pick for Pittsburgh Penguins come from?

### Accurate SQL ###

SELECT college_junior_club_team FROM table_2781227_7 WHERE nhl_team = "Pittsburgh Penguins"