likes ';
          } else {
            pronoun = 'They like ';
          }

          // add the pronoun string on to the end of the main string
          string += pronoun;

          // use another conditional to structure the last part of the
          // second sentence depending on whether the number of interests
          // is 1, 2, or 3
          if(this.interests.length === 1) {
            string += this.interests[0] + '.';
          } else if(this.interests.length === 2) {
            string += 