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_19163 ( "School Name" text, "City" text, "Students" real, "FTE Teachers" text, "Pupil/Teacher Ratio" text, "School Level" text, "Low Grade" text, "High Grade" text )

### Question ###
How many FTE teachers are there when the student:teacher ration is 19?

### Accurate SQL ###

SELECT "FTE Teachers" FROM table_19163 WHERE "Pupil/Teacher Ratio" = '19'