---
1
<await(d1 from data.D1)>
    2
    <await(d2 from data.D2)>
        3
    </await>
    4
    <await(d3 from data.D3)>
        5
    </await>
    6
</await>
7
<await(d4 from data.D4)>
    8
</await>
9
---