The model contains one compartment called "compartment". There are three species named S1, S2 and S3 and one parameter named k. The model contains two reactions defined as:

Reaction | Rate
S1 → S2 | k · S1 · compartmen
S2 → S3 | multiply(k,S2) · compartment,

Reaction S2 → S3 defines one local parameter k. This parameter shadows the global parameter k and thus in reaction S2 → S3 the value of the local parameter must be used.

The model contains one functionDefinition defined as:

Id | Arguments | Formula
multiply | x, y | x · y

The initial conditions are as follows:

| Value | Units
Initial amount of S1 | 3.0 × 10−3 | mole
Initial amount of S2 | 0 | mole
Initial amount of S3 | 0 | mole
Value of parameter k | 1 | second-1
Value of local parameter k | 2 | second-1
Volume of compartment "compartment" | 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.