| timestamp,action_type,item_id,source,user_answer,platform | |
| 1562585090385,enter,b4087,diagnosis,,mobile | |
| 1562585104567,respond,q5555,diagnosis,d,mobile | |
| 1562585111171,submit,b4087,diagnosis,,mobile | |
| 1562585111221,enter,b3604,diagnosis,,mobile | |
| 1562585116513,respond,q5072,diagnosis,b,mobile | |
| 1562585120722,submit,b3604,diagnosis,,mobile | |
| 1562585120756,enter,b2165,diagnosis,,mobile | |
| 1562585131504,respond,q3633,diagnosis,c,mobile | |
| 1562585135760,submit,b2165,diagnosis,,mobile | |
| 1562585135827,enter,b2964,diagnosis,,mobile | |
| 1562585144234,respond,q4432,diagnosis,a,mobile | |
| 1562585148185,submit,b2964,diagnosis,,mobile | |
| 1562585148270,enter,b297,diagnosis,,mobile | |
| 1562585166142,respond,q297,diagnosis,a,mobile | |
| 1562585170163,submit,b297,diagnosis,,mobile | |
| 1562585170227,enter,b2718,diagnosis,,mobile | |
| 1562585173668,respond,q4186,diagnosis,c,mobile | |
| 1562585176927,submit,b2718,diagnosis,,mobile | |
| 1562585176996,enter,b4337,diagnosis,,mobile | |
| 1562585202317,respond,q5805,diagnosis,a,mobile | |
| 1562585205978,submit,b4337,diagnosis,,mobile | |
| 1562585206014,enter,b760,diagnosis,,mobile | |
| 1562585222105,respond,q760,diagnosis,c,mobile | |
| 1562585226454,submit,b760,diagnosis,,mobile | |
| 1562587497612,enter,b803,tutor,,mobile | |
| 1562587546766,respond,q803,tutor,a,mobile | |
| 1562587550272,submit,b803,tutor,,mobile | |
| 1562587550365,enter,e803,tutor,,mobile | |
| 1562587555290,quit,e803,tutor,,mobile | |
| 1562587555543,enter,l468,tutor,,mobile | |
| 1562587577415,quit,l468,tutor,,mobile | |
| 1562587583694,enter,b3405,tutor,,mobile | |
| 1562587587435,respond,q4873,tutor,c,mobile | |
| 1562587590717,submit,b3405,tutor,,mobile | |
| 1562587590778,enter,e3405,tutor,,mobile | |
| 1562587594595,quit,e3405,tutor,,mobile | |
| 1562587608626,enter,b5697,tutor,,mobile | |
| 1562587707700,respond,q8282,tutor,b,mobile | |
| 1562587708842,respond,q8282,tutor,d,mobile | |
| 1562587713124,submit,b5697,tutor,,mobile | |
| 1562587713192,enter,e5697,tutor,,mobile | |
| 1562587719483,quit,e5697,tutor,,mobile | |
| 1562587725546,enter,b1463,tutor,,mobile | |
| 1562587811733,respond,q1587,tutor,d,mobile | |
| 1562587812495,respond,q1587,tutor,d,mobile | |
| 1562587816581,submit,b1463,tutor,,mobile | |
| 1562587816661,enter,e1463,tutor,,mobile | |
| 1562587832786,quit,e1463,tutor,,mobile | |