Tout_velu -> dally_like Tout_velu -> division_abnormally_delayed dally_like -> Hh_exterior_input division_abnormally_delayed -> Hh_exterior_input Rasp -> Hh_exterior_input Shifted -> Hh_exterior_input interference_hedgehog -> Hh_exterior_input Brother_of_iHog -> Hh_exterior_input Dispatched -> Hh_exterior_input Lipophorin -> Hh_exterior_input Hh_exterior_input -| Pka Pka -| Smoothened G_protein_receptor_coupled_kinase_2 -> Smoothened Target_of_Wingless -| Smoothened Smoothened -> Fused Smoothened -| Costa Fused -| Costa Fused -| Suppressor_of_Fused Costa -| Ci_activator Suppressor_of_Fused -| Ci_activator Shaggy -| Ci_activator Protein_kinase_A -| Ci_activator Supernumary_limbs -| Ci_activator Casein_kinase_1_alpha -| Ci_activator Costa -> Ci_repressor Suppressor_of_Fused -> Ci_repressor Shaggy -> Ci_repressor Protein_kinase_A -> Ci_repressor Supernumary_limbs -> Ci_repressor Casein_kinase_1_alpha -> Ci_repressor Ci_activator -> Targets Ci_repressor -| Targets $Ci_activator: (((((!Costa | (Costa & !Suppressor_of_Fused)) | ((((Costa & Suppressor_of_Fused) & !Shaggy) & !Protein_kinase_A) & !Supernumary_limbs)) | (((((Costa & Suppressor_of_Fused) & !Shaggy) & !Protein_kinase_A) & Supernumary_limbs) & !Casein_kinase_1_alpha)) | ((((Costa & Suppressor_of_Fused) & !Shaggy) & Protein_kinase_A) & !Supernumary_limbs)) | (((Costa & Suppressor_of_Fused) & Shaggy) & !Supernumary_limbs)) $Ci_repressor: (((((Costa & Suppressor_of_Fused) & Shaggy) & Protein_kinase_A) & Supernumary_limbs) & Casein_kinase_1_alpha) $Costa: (!Smoothened & !Fused) $Fused: Smoothened $Hh_exterior_input: (((((((dally_like & division_abnormally_delayed) & Rasp) & Shifted) & interference_hedgehog) & Brother_of_iHog) & Dispatched) & Lipophorin) $Pka: !Hh_exterior_input $Smoothened: ((!Pka & G_protein_receptor_coupled_kinase_2) & !Target_of_Wingless) $Suppressor_of_Fused: !Fused $Targets: (Ci_activator & !Ci_repressor) $dally_like: Tout_velu $division_abnormally_delayed: Tout_velu