The model contains one compartment called "compartment". There are four species named S1, S2, S3 and S4 and three parameters named p1, p2 and k1. The model contains two reactions defined as:

Reaction Rate
S1 → S2 compartment · k1 · S1
S3 → S4 Piecewise(‎‎p1, S1 < 2.5‏‏, p2)

The initial conditions are as follows:

Value Units
Initial amount of S1 5 mole
Initial amount of S2 0 mole
Initial amount of S3 5 mole
Initial amount of S4 0 mole
Value of parameter p1 1.5 mole second-1
Value of parameter p2 0.05 mole second-1
Value of parameter k1 1.0 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.