Database: student_1
Question: What are the first and last names of the first-grade students who are NOT taught by teacher OTHA MOYER?
SQL: select distinct t1.firstname ,  t1.lastname from list as t1 join teachers as t2 on t1.classroom  =  t2.classroom where t1.grade  =  1 except select t1.firstname ,  t1.lastname from list as t1 join teachers as t2 on t1.classroom  =  t2.classroom where t2.firstname  =  "otha" and t2.lastname  =  "moyer"