title: Turtles moving to target when two conditions are met
body: <p>I want to create a target (breed: shops) with two conditions:</p>
  <ol>
  <li>The shop is open</li>
  <li>The shop that is closest to the turtle (households) location</li>
  </ol>
  <p>But I keep getting errors, see line below.</p>
  <p>open-nh? is a shop attribute.</p>
  <p>Thanks!</p>
  <pre><code>  let target-nh [min-one-of healthy-shops[distance myself] and open-nh? = true]
  </code></pre>