The values in columns marked with an asterisk (*) are same for all occurances of the word. COL NAME DESCRIPTION 1 #line Line number 2 #assg Assignment Number 3 fixcount Number of fixations to the word 4* firstPassCnt Number of fixations to the word when it is first encountered 5* P1stFixation '1' if fixation occured when the sentence the word was in was encountered the first time 6* P2stFixation '1' if fixation occured when the sentence the word was in was encountered the second time 7* prevFixDur Duration of previous fixation 8* firstfixDur Duration of the first fixation when the word is first encountered 9* firstPassFixDur Sum of durations of fixations when the word is first encountered 10* nextFixDur Duration of the next fixation when gaze initially moves from the word 11 firstSaccLen Length of the first saccade 12 lastSaccLen Distance between fixation on the word and the next fixation 13 prevFixPos Distance between the first fixation preceding the word and the beginning ot the word 14 landingPos Distance between the first fixation on the word and the beginning of the word 15 leavingPos Distance between the last fixation on the word and the beginning of the word 16 totalFixDur Sum of all durations of fixations to the word 17 meanFixDur Mean duration of the fixations to the word 18* nRegressFrom Number of regressions leaving from the word 19* regressLen Sum of durations of regressions initiating from this word 20* nextWordRegress '1' if a regression initiated from the following word 21* regressDur Sum of durations of the fixations on the word during regression 22 pupilDiamMax Maximum pupil diameter 23 pupilDiamLag Maximum pupil diameter 0.5 - 1.5 seconds after the beginning of fixation 24 timePrtctg First fixation duration divided by the total number of fixations 25 nWordsInTitle Number of word in the sentence (title) this word is in 26 titleNo Title number 27 wordNo Word number (ordinal) in this title 28 label Classification for training data ('0'=irrelevant, '1'=relevant, '2'=correct)