Complicated IF function

so i'm back because i don't think i have my problem resolved just yet. i am using this function: =IF(E718="E-RES","ELECTRIC",IF(E718="G-RES","GAS",IF(F718>0,IF(G718>0,"NO PITCH","ELECTRIC"),IF(G718>0,"GAS","DUAL"))))

here's the issue i am still having. hopefully this image shows up:

Untitled.png

so basically, i want H718 to display "NO PITCH" because E718=E-RES **AND** G718>0. The same would apply if E718="G-RES" **AND** F718>0.

can anyone tell from my function where i am going wrong? or what i might need to add? i've been playing around with this forever and i've come up empty-handed, so any help would be amazing.