You can find many such discontinuous pairs here. You can find many such discontinuous pairs here. Theres also little room for error. There's also little room for error. Does this make sense?
50 years ago, a pair averaging 17.7 Mormon existence and 60 cents.
( z0 average :ARG1 ( z1 pair ) :ARG2 ( z2 and :op ( z3 exist :quant 17.7 :mod ( z4 religious-group :name ( z5 name :op "Mormon" ) ) ) :op ( z6 monetary-quantity :quant 60 :unit ( z7 cent ) ) ) :time ( z8 before :quant ( z9 temporal-quantity :quant 50 :unit ( z10 year ) ) :op ( z11 now ) ) )
(z0 / average-01
    :ARG1 (z1 / pair)
    :ARG2 (z2 / and
              :op1 (z3 / exist-01
                       :quant 17.7
                       :mod (z4 / religious-group
                                :name (z5 / name
                                          :op1 "Mormon")))
              :op2 (z6 / monetary-quantity
                       :quant 60
                       :unit (z7 / cent)))
    :time (z8 / before
              :quant (z9 / temporal-quantity
                         :quant 50
                         :unit (z10 / year))
              :op1 (z11 / now)))
50 years ago , a pair averaging 17.7 Mormon existence and 60 cents .
z9 :quant 1
z9 :unit z10
z8 :quant z9
z8 :op1 z11
z0 :ARG1 z1
z0 :time z8
z4 :name z5
z5 :op1 3
z3 :mod z4
z3 :quant 0
z2 :op1 z3
z0 :ARG2 z2
z6 :quant 2
z2 :op2 z6
z6 :unit z7