which one is correct ?<br/><br/>identification of main features REVEAL <br/><br/>or <br/><br/>identification of main features REVEALS <br/><br/>--------------------<br/><br/>plz help, thanks in advance <img class='emoticon' style='Width:19px;Height:19px;' data-delaysrc='https://uat-englishforward-forums-backend.s3.us-west-2.amazonaws.com/Emoticons/1.gif' src='https://uat-englishforward-forums-backend.s3.us-west-2.amazonaws.com/Emoticons/1.gif' alt='Emotion: smile'/>