title: How can I map over object values using Ramda.js and take only first element?
body: <p>I have input like that:</p>
  
  <pre><code>{
    a: [obj1, obj2, obj3...],
    b: [obj1, obj2, obj3...],
    c: [obj1, obj2, obj3...]
  }
  </code></pre>
  
  <p>I want to have that output (only first object from array for every key)</p>
  
  <pre><code>{
    a: [obj1],
    b: [obj1],
    c: [obj1]
  }
  </code></pre>
  
  <p>I want to do it using <a href="http://ramdajs.com/docs/" rel="noreferrer">ramda.js</a></p>