stringset

/* Simple Hello World in Node.js */
var StringSet = require('stringset');
value = [ '"norm"',
  '"average"',
  '"average out"',
  '"mean"',
  '"ordinary"',
  '"middling"',
  '"mediocre"',
  '"fair"',
  '"medium"',
  '"intermediate"',
  '"modal"',
  '"median"' ]
var synonym_set =new StringSet(value.trim().split(",").slice(1,-1));
console.log("Hello World");