Priority four cases are elective procedures that can be deferred for longer than three months; priority three operations should be done within three months; and priority two within 28 days. It sparked fears that 'priority two' procedures, where patients have to be operated on within four weeks to prevent their condition to markedly deteriorate, would be cancelled. The operations likely to be cancelled, known as priority two procedures, mainly involve surgery for cancer where specialists have judged that the patients need to be operated on within four weeks. Kings College hospital confirmed it had cancelled priority two cancer operations. Health bosses last night insisted urgent cancer operations in London will not be scrapped to ease the strain on hospitals inundated with coronavirus patients.
priority 2 procedures will be cancelled  95% of the time.
( z0 cancel :ARG1 ( z1 procedure :mod ( z2 priority :mod 2 ) ) :time ( z3 time :quant ( z4 percentage-entity :value 95 ) ) )
(z0 / cancel-01
    :ARG1 (z1 / procedure
              :mod (z2 / priority
                       :mod 2))
    :time (z3 / time
              :quant (z4 / percentage-entity
                         :value 95)))
priority 2 procedures will be cancelled 95 % of the time .
z2 :mod 0
z1 :mod z2
z0 :ARG1 z1
z4 :value 1
z3 :quant z4
z0 :time z3