From what I can tell, these attitudes largely progressed through three phases. 4. 5. 7. 6.
atheists couldn’t come and help.
( z0 possible :ARG1 ( z1 and :op ( z2 come :ARG1 ( z3 atheist ) ) :op ( z4 help :ARG0 z3 ) ) :polarity - )
(z0 / possible-01
    :ARG1 (z1 / and
              :op1 (z2 / come-01
                       :ARG1 (z3 / atheist))
              :op2 (z4 / help-01
                       :ARG0 z3))
    :polarity -)
atheists couldn’t come and help .
z0 :polarity 0
z2 :ARG1 z3
z1 :op1 z2
z0 :ARG1 z1
z1 :op2 z4
z4 :ARG0 z3