Makes several queries at the same in a server a get the first response
<p>I would like to make several queries (send POST request) at the same time.
And stay with the first answer that has a certain pattern (e.g The page shows Ok).</p>

<p>The web page that I'm trying to consult could take so much time to respond depends on the data sent. Therefore, I am interested in those requests that give me an answer first. The rest request I should finish them.</p>

<p>How can I do such a thing in Haskell?</p>