let Paraphrase = require('paraphrase-sentences');
const key = '<INSERT YOUR GOOGLE TRANSLATE API KEY HERE>';

let paraphrase = new Paraphrase({ key });

(async () => {
  let results = await paraphrase.get('Nearly half Hong Kong flats rent for more than US$2,550 a month');
  console.log(results);
})();

// Outputs:
// [ 'Nearly half of Hong Kong\'s rental apartments exceed $ 2,550 a month.',
//  'More than half a Hong Kong rental costs more than US $ 2,550 per month.',
//  'Nearly half of Hong Kong Flats will rent more than US $ 2,550 a month.',
//  'Almost half of Hong Kong apartments for rent for more than $ 2,550 per month.',
//  'Nearly half of Hong Kong homes have earned more than $ 2.550 a month.',
//  'About half of the Hong Kong floors rented over US $ 2,550 a month.',
//  'Almost half Hong Kong ask for rent for more than $ 2,550 in a month.',
//  'Nearly half of Hong Kong costs more than $ 2,550 a month.',
//  'Nearly one of the Hong Kong Hong Kong taxpayers is $ 2.5,550 per month.',
//  'Almost half of the apartments in Hong Kong hire more than 2,550 US dollars a month.' ]

let paraphrase = new Paraphrase({
  num: 10, // how many variations to generate
  key: null, // your API key
  lang: 'en', // language of your source sentence in the Google Translate format
  removeDuplicates: true, // whether to remove duplicate sentences in the results
});