Farabundo Marti National Liberation Front's [FMLN] urban commandos have denied reports they participated in an attack on vice president-elect Francisco Merino's home.
The FLMN denied reports that they did not participate in an attack on vice president-elect Francisco Merino's home. 
I wrote my incorrect statement in a way that was similar to the original correct statement. They way I wrote it would show that they denied innocence
( z1 deny :ARG0 ( z2 political-party :name ( z3 name :op "FLMN" ) ) :ARG1 ( z4 report :ARG1 ( z5 participate :polarity - :ARG0 z2 :ARG1 ( z6 attack :ARG1 ( z7 home :poss ( z8 person :name ( z9 name :op "Francisco" :op "Merino" ) :ARG1-of ( z10 elect :ARG2 ( z11 have-org-role :ARG0 z8 :ARG2 ( z12 president :mod ( z13 vice ) ) ) ) ) ) ) ) ) )