timestamp,action_type,item_id,source,user_answer,platform
1562303258989,enter,b2766,diagnosis,,mobile
1562303279511,respond,q4234,diagnosis,b,mobile
1562303289569,submit,b2766,diagnosis,,mobile
1562303289680,enter,b3279,diagnosis,,mobile
1562303312216,respond,q4747,diagnosis,a,mobile
1562303321656,submit,b3279,diagnosis,,mobile
1562303321773,enter,b2898,diagnosis,,mobile
1562303340276,respond,q4366,diagnosis,a,mobile
1562303350518,submit,b2898,diagnosis,,mobile
1562303350635,enter,b4974,diagnosis,,mobile
1562303363750,respond,q6442,diagnosis,d,mobile
1562303374739,submit,b4974,diagnosis,,mobile
1562303374846,enter,b4157,diagnosis,,mobile
1562303386556,respond,q5625,diagnosis,b,mobile
1562303397671,submit,b4157,diagnosis,,mobile
1562303397755,enter,b2658,diagnosis,,mobile
1562303413697,respond,q4126,diagnosis,c,mobile
1562303423723,submit,b2658,diagnosis,,mobile
1562303423814,enter,b4286,diagnosis,,mobile
1562303446710,respond,q5754,diagnosis,a,mobile
1562303455693,submit,b4286,diagnosis,,mobile
1562303455789,enter,b219,diagnosis,,mobile
1562303464062,respond,q219,diagnosis,a,mobile
1562303466371,respond,q219,diagnosis,b,mobile
1562303466938,respond,q219,diagnosis,c,mobile
1562303467427,respond,q219,diagnosis,a,mobile
1562303484503,respond,q219,diagnosis,b,mobile
1562303487228,respond,q219,diagnosis,a,mobile
1562303496879,respond,q219,diagnosis,a,mobile
1562303506626,submit,b219,diagnosis,,mobile
1562348268442,enter,e56,review,,mobile
1562348269830,quit,e56,review,,mobile
1562369898505,enter,e3923,review,,mobile
1562369901091,quit,e3923,review,,mobile
1562600225973,enter,e2766,review,,mobile
1562600227465,quit,e2766,review,,mobile
1562600248432,enter,l817,tutor,,mobile
1562600520340,quit,l817,tutor,,mobile
1562600520535,enter,l719,tutor,,mobile
1562600537024,quit,l719,tutor,,mobile
1562818210409,enter,b169,sprint,,mobile
1562818213828,submit,b169,sprint,,mobile
1562818361112,enter,b5205,sprint,,mobile
1562818393387,respond,q6916,sprint,a,mobile
1562818400621,submit,b5205,sprint,,mobile
1562818400721,enter,e5205,sprint,,mobile
1562818406750,quit,e5205,sprint,,mobile
1562819067708,enter,l560,adaptive_offer,,mobile
1562819319682,quit,l560,adaptive_offer,,mobile
1562819762722,enter,l560,adaptive_offer,,mobile
1562819850922,quit,l560,adaptive_offer,,mobile
1562941057162,enter,l560,adaptive_offer,,mobile
1562941646397,quit,l560,adaptive_offer,,mobile