<?xml version="1.0" encoding="UTF-8"?>
<flow>
    <chain name="chain1">
        <then value="a[1],a[2],a[3]"/>
    </chain>

    <chain name="chain2">
        <then value="a[1],a[2],a[3],c[2](d[5]|e[6])"/>
    </chain>

    <chain name="chain3">
        <then value="b1"/>
        <when value="b[1],b[2],b[3]"/>
    </chain>

    <chain name="chain4">
        <then value="f[false],g"/>
    </chain>
</flow>