rxnrate_0 = 1e5
rxnrate_1 = "rate1.txt"

DEFINE_REACTIONS
{
    REACTION_GROUP g2
    {
        s_v_3 + s_v_4 <-> s_v_5     [>1e5, <1e3]
        s_v_5 <-> s_v_0             [>1e3, <1.1e3]
    }

    s_v_3; + s_g_0; <-> s_g_1;      [> rxnrate_1, < "rate2.txt"]
    s_g_0' + s_g_1' <-> s_g_2,      [< "rate2.txt", > rxnrate_1]
    s_v_4    -s_v_0-> s_v_5         [>rxnrate_0] : rxn2
    s_v_5   <-s_v_0-> s_v_6         [>1.1e5, <3e2]
    m_v_5 + m_v_5 -> NULL           [>1e6]
    m_v_5' + s_g_0' @ s_sc_0' -> s_g_0' [>1e6]
}