The State of California Department of Occupational Health and Safety released its report on the September 5 fatal accident on Disneyland's Big Thunder Mountain Railroad attraction.
September fifth was not a good day for Thunder Mountain riders.
That is the day the ride caused fatal accidents which makes it correct
( z1 day :ARG1-of ( z2 good :polarity - :ARG2 ( z3 person :ARG0-of ( z4 ride :ARG1 ( z5 mountain :name ( z6 name :op "Thunder" :op "Mountain" ) ) ) ) ) :domain ( z7 date-entity :month 9 :day 5 ) )