Dataset {
    Sequence {
        Int32 age;
        Int32 size;
        Sequence {
            Int16 foo;
            Int16 bar;
        } stuff;
    } person1;
    Sequence {
        Int32 age;
        Sequence {
            Int16 foo;
            Int16 bar;
        } stuff;
        Int32 size;
    } person2;
} NestedSequences;