title: Convert character vector into dataframe
body: <p>I wanted to practice web scraping and used 'R' and 'rvest' package for it. Now i have a character vector (p_text) of 125 elements and want to convert it into a dataframe. with 25 rows and 5 columns with names q1, opt1, opt2, opt3, opt4 .</p>
  <p>so element 1,5,10 in column = q1; 2,6,11 in column = opt1; 3,7,12 in column = opt2; and so on.</p>
  <pre><code>library(dplyr)    
  library(rvest)
  
  url &lt;- 'http://upscfever.com/upsc-fever/en/test/en-test-sci1.html'
  
  webpage &lt;- read_html(url)
  
  p_text &lt;- webpage %&gt;%
          html_nodes(&quot;label&quot;) %&gt;%
          html_text()
  </code></pre>
  <p>How to do it ?</p>