CREATE TABLE table_1414743_1 (fte_teachers VARCHAR2, pupil_teacher_ratio VARCHAR2)

How many FTE teachers are there when the student:teacher ration is 19?
SELECT fte_teachers FROM table_1414743_1 WHERE pupil_teacher_ratio = "19"
SELECT "fte_teachers" FROM "table_1414743_1" WHERE "19" = "pupil_teacher_ratio"