subj, type1, type2, type3, type4
s1,3,4,4,3
s2,2,4,4,5
s3,2,3,3,6
s4,3,3,3,5
s5,1,2,4,7
s6,3,3,6,6
s7,4,4,5,10
s8,6,5,5,8