$logic =  ($cA & $cB & $cC & $cD);
say '$cA & $cB & $cC & $cD is :', $logic->as_string;
 >>> ((A and B and C and D or E) or F)

##</code><code>##

Can't locate object method "as_string" via package "InterMine::PathQuery::ConstraintSet=HASH(0x87yt738)"