timestamp,action_type,item_id,source,user_answer,platform
1561532375523,enter,b2902,diagnosis,,web
1561532401078,respond,q4370,diagnosis,d,web
1561532401917,submit,b2902,diagnosis,,web
1561532406271,enter,b1305,diagnosis,,web
1561532460208,respond,q1305,diagnosis,c,web
1561532461043,submit,b1305,diagnosis,,web
1561532463241,enter,b7377,diagnosis,,web
1561532499535,respond,q10026,diagnosis,a,web
1561532500405,submit,b7377,diagnosis,,web
1561532502482,enter,b2546,diagnosis,,web
1561532530125,respond,q4014,diagnosis,b,web
1561532532295,submit,b2546,diagnosis,,web
1561532534300,enter,b2551,diagnosis,,web
1561532556911,respond,q4019,diagnosis,a,web
1561532557586,submit,b2551,diagnosis,,web
1561532559440,enter,b4855,diagnosis,,web
1561532574028,respond,q6323,diagnosis,c,web
1561532575536,submit,b4855,diagnosis,,web
1561532577473,enter,b4569,diagnosis,,web
1561532611424,respond,q6037,diagnosis,a,web
1561532612134,submit,b4569,diagnosis,,web
1561544491870,enter,b726,tutor,,mobile
1561544502590,respond,q726,tutor,a,mobile
1561544539821,respond,q726,tutor,b,mobile
1561544566232,submit,b726,tutor,,mobile
1561544566327,enter,e726,tutor,,mobile
1561544596517,quit,e726,tutor,,mobile
1561544596609,enter,b7678,tutor,,mobile
1561544624566,respond,q10327,tutor,d,mobile
1561544630852,submit,b7678,tutor,,mobile
1561544630932,enter,e7678,tutor,,mobile
1561544641738,quit,e7678,tutor,,mobile
1561633811261,enter,b1614,tutor,,mobile
1561633842775,submit,b1614,tutor,,mobile
1561689677155,enter,b8519,tutor,,mobile
1561689813184,respond,q11746,tutor,d,mobile
1561689819602,submit,b8519,tutor,,mobile
1561689819699,enter,e8519,tutor,,mobile
1561689861182,quit,e8519,tutor,,mobile
1561689861276,enter,b526,tutor,,mobile
1561689918161,respond,q526,tutor,c,mobile
1561689922970,submit,b526,tutor,,mobile
1561689923035,enter,e526,tutor,,mobile
1561689953555,quit,e526,tutor,,mobile
1561689953590,enter,b1553,tutor,,mobile
1561690057964,respond,q1857,tutor,c,mobile
1561690062647,submit,b1553,tutor,,mobile
1561690062720,enter,e1553,tutor,,mobile
1561690147416,quit,e1553,tutor,,mobile
1561690165339,enter,b84,tutor,,mobile
1561690227062,respond,q84,tutor,c,mobile
1561690231974,submit,b84,tutor,,mobile
1561690232044,enter,e84,tutor,,mobile
1561690290997,quit,e84,tutor,,mobile
1561690291054,enter,b686,tutor,,mobile
1561690341491,respond,q686,tutor,b,mobile
1561690345692,submit,b686,tutor,,mobile
1561690345720,enter,e686,tutor,,mobile
1561690381687,quit,e686,tutor,,mobile
1561690381770,enter,b1495,tutor,,mobile
1561690475486,respond,q1683,tutor,b,mobile
1561690487617,submit,b1495,tutor,,mobile
1561690487685,enter,e1495,tutor,,mobile
1561690579658,quit,e1495,tutor,,mobile
1561690579750,enter,l781,tutor,,mobile
1561690757831,quit,l781,tutor,,mobile
1561690758003,enter,b4834,tutor,,mobile
1561690795921,respond,q6302,tutor,b,mobile
1561690801004,submit,b4834,tutor,,mobile
1561690801060,enter,e4834,tutor,,mobile
1561690834292,quit,e4834,tutor,,mobile
1561690834319,enter,b7619,tutor,,mobile
1561690879522,respond,q10268,tutor,b,mobile
1561690883316,submit,b7619,tutor,,mobile
1561690883380,enter,e7619,tutor,,mobile
1561690920908,quit,e7619,tutor,,mobile
1561690920979,enter,b5253,tutor,,mobile
1561691016055,respond,q7107,tutor,d,mobile
1561691021572,submit,b5253,tutor,,mobile
1561691021612,enter,e5253,tutor,,mobile
1561691066562,quit,e5253,tutor,,mobile
1561691066694,enter,l489,tutor,,mobile
1561691513110,quit,l489,tutor,,mobile
1561843583620,enter,b3008,sprint,,mobile
1561843607875,respond,q4476,sprint,d,mobile
1561843609486,respond,q4476,sprint,b,mobile
1561843610413,respond,q4476,sprint,c,mobile
1561843616009,submit,b3008,sprint,,mobile
1561843616066,enter,e3008,sprint,,mobile
1561843630405,quit,e3008,sprint,,mobile
1561843630447,enter,b2182,sprint,,mobile
1561843646216,respond,q3650,sprint,b,mobile
1561843650111,submit,b2182,sprint,,mobile
1561843650162,enter,e2182,sprint,,mobile
1561843660664,quit,e2182,sprint,,mobile
1561843660735,enter,b4024,sprint,,mobile
1561843696201,respond,q5492,sprint,c,mobile
1561843700760,submit,b4024,sprint,,mobile
1561843700814,enter,e4024,sprint,,mobile
1561843710988,quit,e4024,sprint,,mobile
1561843711031,enter,b11564,sprint,,mobile
1561843748548,respond,q17327,sprint,c,mobile
1561843759216,submit,b11564,sprint,,mobile