Once that simple step is taken, there are many paths forward, but it's not about reinventing the wheel. Before, they may never have used tools like Zoom at all. Do I qualify? Do I qualify? I believe the key lies in the expansion and contraction of the two roles.
The average is over 2, 000.
( z0 average :ARG2 ( z1 over :op 2000 ) )
(z0 / average-01
    :ARG2 (z1 / over
              :op1 2000))
The average is over 2 , 000 .
z0 :ARG2 z1
z1 :op1 0