// Created by libAntimony v2.8.0
function function_4(P, V3, R, k3)
  (P*V3*(1 - R))/(k3 + (1 - R));
end

function function_3(V2, R, Q, K2)
  (V2*R*Q)/(K2 + Q);
end

function function_2(V1, Q, K1)
  (V1*(1 - Q))/(K1 + (1 - Q));
end

function function_1(V, substrate, Km)
  (V*substrate)/(Km + substrate);
end

function function_0(a, Q)
  a*Q;
end


model *Model_0()

  // Compartments and Species:
  compartment body;
  substanceOnly species P in body, Q in body, R in body;

  // Reactions:
  reaction_0:  => P; body*function_0(reaction_0_a, Q);
  reaction_1: P => ; function_1(reaction_1_V, P, reaction_1_Km);
  reaction_2:  => Q; function_2(reaction_2_V1, Q, reaction_2_K1);
  reaction_3: Q => ; function_3(reaction_3_V2, R, Q, reaction_3_K2);
  reaction_4:  => R; function_4(P, reaction_4_V3, R, reaction_4_k3);
  reaction_5: R => ; function_1(reaction_5_V, R, reaction_5_Km);

  // Species initializations:
  P = 0.43;
  Q = 0.8;
  R = 0.55;

  // Compartment initializations:
  body = 1;

  // Variable initializations:
  reaction_0_a = 0.1;
  reaction_1_V = 0.1;
  reaction_1_Km = 0.2;
  reaction_2_V1 = 1;
  reaction_2_K1 = 0.01;
  reaction_3_V2 = 1.5;
  reaction_3_K2 = 0.01;
  reaction_4_V3 = 6;
  reaction_4_k3 = 0.01;
  reaction_5_V = 2.5;
  reaction_5_Km = 0.01;

  // Other declarations:
  const body;

  // Unit definitions:
  unit time_unit = 604800 second;
  unit substance = dimensionless;

  // Display Names:
  time_unit is "weeks";
  substance is "dimensionless";
  reaction_0 is "Increase of  P";
  reaction_1 is "Decrease of P";
  reaction_2 is "Increase of Q";
  reaction_3 is "Decrease of Q";
  reaction_4 is "Increase of R";
  reaction_5 is "Decrease of R";
end