Says each of my radio button elements should be in the form tag?

Tell us what’s happening:
I have the code verbatum. Also, i noticed a typo where the tutorial didnt spell form correctly, “for”, and that was luckily easy to spot. However, im not understanding what im doing incorrectly. I have all the proper elements. Help?
Im struggling with the label/radio button sections.

Your code so far

<p>Click here to view more <a href="#">cat photos</a>.</p>

<a href="#"><img src="" alt="A cute orange cat lying on its back."></a>

<p>Things cats love:</p>
  <li>cat nip</li>
  <li>laser pointers</li>
<p>Top 3 things cats hate:</p>
  <li>flea treatment</li>
  <li>other cats</li>
<form action="/submit-cat-photo">
  <input type="text" placeholder="cat photo URL" required>
  <button type="submit">Submit</button>
<label form="indoor">
<input id="indoor" type="radio" name="indoor-outdoor"> indoor
<label form="outdoor">
  <input id="outdoor" type="radio" name="indoor-outdoor"> outdoor

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.129 Safari/537.36.

Challenge: Create a Set of Radio Buttons

Link to the challenge:

<label form="indoor"> is incorrect.
<label for="indoor"> is correct.

Oh wow. I feel real stupid. I thought it was a typo haha. God. Thanks so much. I appreciate your help.

also this is your form tag, there are no radio elements inside it