What are the grade number and classroom number of each class in the list?
SELECT DISTINCT classroom ,  grade FROM list
SELECT DISTINCT classroom ,  grade FROM list
[{'Classroom': 101, 'Grade': 2}, {'Classroom': 112, 'Grade': 6}, {'Classroom': 107, 'Grade': 3}, {'Classroom': 105, 'Grade': 0}, {'Classroom': 111, 'Grade': 4}, {'Classroom': 102, 'Grade': 1}, {'Classroom': 104, 'Grade': 0}, {'Classroom': 109, 'Grade': 5}, {'Classroom': 110, 'Grade': 4}, {'Classroom': 103, 'Grade': 1}, {'Classroom': 106, 'Grade': 0}, {'Classroom': 108, 'Grade': 4}]