userId,movieId,rating,timestamp
1,1097,5,964981680
1,1127,4,964982513
1,1136,5,964981327
1,1196,5,964981827
1,1197,5,964981872
1,1198,5,964981827
1,1206,5,964983737
1,1208,4,964983250
1,1210,5,964980499
1,1213,5,964982951
1,1214,4,964981855
2,114060,2,1445715276
2,115713,3.5,1445714854
2,122882,5,1445715272
2,131724,5,1445714851
3,2105,2,1306463559
3,2288,4,1306463631
3,2851,5,1306463925
3,2424,0.5,1306464293