{"letter_grade":"A","points":4}
{"letter_grade":"A-","points":3.7}
{"letter_grade":"B+","points":3.3}
{"letter_grade":"B","points":3}
{"letter_grade":"B-","points":2.7}
{"letter_grade":"C+","points":2.3}
{"letter_grade":"C","points":2}
{"letter_grade":"C-","points":1.7}
{"letter_grade":"D+","points":1.3}
{"letter_grade":"D","points":1}
{"letter_grade":"D-","points":0.7}
{"letter_grade":"F","points":0}