Task: Text to Code
Input (English): SQL: SELECT Count ( * ) FROM teachers WHERE FirstName = "TARRING"
Feedback: Change teachers table with list table , and ensure that teachers's first name equals TARRING and last name equals LEIA .
Output (English): SELECT count(*) FROM list AS T1 JOIN teachers AS T2 ON T1.classroom  =  T2.classroom WHERE T2.firstname  =  "TARRING" AND T2.lastname  =  "LEIA"