Microsoft Access Query

Find all instructors scheduled to teach in at least two semesters. Output a table consisting of three columns: FirstName, LastName, Number of Courses.

Instructors

InstrId	FirstName	LastName	DeptId
001	John	von Neumann	Math
002	Richard	Feynman	Phys
003	Donald	Knuth	CS
004	Alan	Turing	CS

Schedule

CourseId	Term	InstrId
CS 200	Fall 2016	003
CS 200	Fall 2017	003
CS 300	Spring 2017	003
CS 400	Fall 2016	004
CS 400	Fall 2017	004
Math 200	Fall 2016	001
Math 200	Spring 2017	004
Math 200	Fall 2017	001
Phys 400	Spring 2017	002