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_47187 ( "Name" text, "Year Began" text, "s Registered user" text, "Updated in past 30 days" text, "Registration" text, "Ability to syndicate off-site feeds" text, "Userpics Free" text, "Userpics Paid" text, "Monthly Cost for Paid Account" text, "Yearly Cost for Paid Account" text, "Permanent Account" text )

### Question ###
What is the S Registered User, when Userpics Free is 6 [free] or 15 [plus]?

### Accurate SQL ###

SELECT "s Registered user" FROM table_47187 WHERE "Userpics Free" = '6 [free] or 15 [plus]'