The model contains one compartment called C. There are two species called S1 and S2 and two parameters called k1 and k2. The model contains one reaction defined as:

Reaction Rate
→S1 C · k2 · S2

The model contains one rule:

Type Variable Formula
Algebraic n/a S1 + S2−k1

The model contains one initialAssignment that assigns the initial value for parameter k1:

Variable Formula
k1 1

Note: InitialAssignments override any declared initial values. In this case the value from the initialAssignment is inconsistent with the value attributed to k1 by the model definition. The calculated value should be used.

The initial conditions are as follows:

Value Units
Initial amount of S1 0.5 mole
Initial amount of S2 0.5 mole
Value of parameter k1 5.0 mole litre-1
Value of parameter k2 1 second-1
Volume of compartment C 1 litre

The species values are given as amounts of substance to make it easier to use the model in a discrete stochastic simulator, but (as per usual SBML principles) their symbols represent their values in concentration units where they appear in expressions.