Cactus -| Dif
Slmb -> Cactus
Pelle -| Cactus
Spz -> Toll
Toll -> MyD88
Cactus -| Dorsal
Nec -| Spz
MyD88 -> Tube
Tube -> Pelle
Dorsal -> Targets
Dif -> Targets
$Cactus: !(Pelle & Slmb)
$Dif: !Cactus
$Dorsal: !Cactus
$MyD88: Toll
$Pelle: Tube
$Spz: !Nec
$Targets: (Dif | Dorsal)
$Toll: Spz
$Tube: MyD88