<?xml version="1.0" encoding="UTF-8"?>
<flow>
    <chain name="chain3">
        THEN(f, g)
    </chain>

    <chain name="chain4">
        THEN(h, m)
    </chain>

    <chain name="c1">
        THEN(p);
    </chain>

    <chain name="c2">
        THEN(q);
    </chain>
</flow>