timestamp,action_type,item_id,source,user_answer,platform
1562387404564,enter,b3110,diagnosis,,mobile
1562387445576,respond,q4578,diagnosis,c,mobile
1562387452519,submit,b3110,diagnosis,,mobile
1562387452618,enter,b2235,diagnosis,,mobile
1562387499328,respond,q3703,diagnosis,b,mobile
1562387504099,submit,b2235,diagnosis,,mobile
1562387504184,enter,b3447,diagnosis,,mobile
1562387526474,respond,q4915,diagnosis,a,mobile
1562387532076,submit,b3447,diagnosis,,mobile
1562387532173,enter,b7373,diagnosis,,mobile
1562387559169,respond,q10022,diagnosis,d,mobile
1562387564440,submit,b7373,diagnosis,,mobile
1562387564530,enter,b2245,diagnosis,,mobile
1562387588479,respond,q3713,diagnosis,d,mobile
1562387593514,submit,b2245,diagnosis,,mobile
1562387593605,enter,b2476,diagnosis,,mobile
1562387635177,respond,q3944,diagnosis,b,mobile
1562387641024,submit,b2476,diagnosis,,mobile
1562387641111,enter,b2598,diagnosis,,mobile
1562387682693,respond,q4066,diagnosis,a,mobile
1562387688317,submit,b2598,diagnosis,,mobile
1562577966144,enter,l812,tutor,,mobile
1562577975655,quit,l812,tutor,,mobile
1562578235180,enter,l438,tutor,,mobile
1562578345886,quit,l438,tutor,,mobile
1562578346336,enter,b5243,tutor,,mobile
1562578770042,respond,q7073,tutor,d,mobile
1562578777065,submit,b5243,tutor,,mobile
1562578777146,enter,e5243,tutor,,mobile
1562578805894,quit,e5243,tutor,,mobile
1562578936293,enter,b5369,tutor,,mobile
1562579190495,respond,q7524,tutor,b,mobile
1562579196382,submit,b5369,tutor,,mobile
1562579196483,enter,e5369,tutor,,mobile
1562579267816,quit,e5369,tutor,,mobile
1562583154277,enter,b5567,adaptive_offer,,mobile
1562583170565,respond,q8096,adaptive_offer,d,mobile
1562583178865,submit,b5567,adaptive_offer,,mobile
1562583178962,enter,e5567,adaptive_offer,,mobile
1562583186494,quit,e5567,adaptive_offer,,mobile