<?php
	class Animals {
	
		private $animal1, $animal2, $animal3;
		
		public function __construct($animal1, $animal2, $animal3) {
			$this->animal1 = $animal1;
			$this->animal2 = $animal2;
			$this->animal3 = $animal3;
		}
		
		public function BuildSentence() {
		
			$fin_sentence = 'The animals are a ' . $this->animal1 . ', a ' . $this->animal2 . ' and a ' . $this->animal3;
			return $fin_sentence;
		
		}
		
		public function getAnimal1() {
			return $this->animal1;
			
		}
		
		public function getAnimal2() {
			return $this->animal2;
			
		}
		
		public function getAnimal3() {
			return $this->animal3;
			
		}
		
		public function setAnimal1($value) {
			$this->animal1 = $value;
			
		}
		
		public function setAnimal2($value) {
			$this->animal2 = $value;
			
		}
		
		public function setAnimal3($value) {
			$this->animal3 = $value;
			
		}
	
	}
	
	$sentence = new Animals('dog', 'cat', 'bird');
	echo $sentence->BuildSentence();
	
?>