learning how to use wordnik api

var type = 'antonym';
var url = 'http://api.wordnik.com:80/v4/word.json/';
var url2 = '/relatedWords?useCanonical=false&relationshipTypes=';
var url3 = '&limitPerRelationshipType=10&api_key=a2a73e7b926c924fad7001ca3111acd55af2ffabf50eb4ae5';

var button;
var input;
var output;

function setup() {
  noCanvas();
  input = createInput('');
  button = createButton('Submit');
  button.mousePressed(askWordnik);
  input.changed(askWordnik);
}

function askWordnik(){
  loadJSON(url + input.value() + url2 + type + url3, gotData);
}

function gotData(data){
  var index1 = floor(random(data[0].words[0]));
  output = createP(data[0].words);
}