The model contains one compartment called "compartment". There are four species named S1, S2, S3 and S4 and two parameters named k1 and k2. The model contains two reactions defined as:

Reaction Rate
S1 + S2 → S3 + 2S4 k1 · multiply(S1,S2) · compartment
S3 + S4 → S1 + S2 k2 · S3 · S4 · compartment

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 1.0 × 10−3 mole
Initial amount of S2 1.0 × 10−3 mole
Initial amount of S3 2.0 × 10−3 mole
Initial amount of S4 1.0 × 10−3 mole
Value of parameter k1 0.75 × 103 litre mole-1 second-1
Value of parameter k2 0.25 × 103 litre mole-1 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.