Oriental Pork Stew

• 2 cans mushrooms
• 1 clove garlic (minced)
• 475 ml water
• 260 gr green beans (frozen)
• 260 gr pork (boneless)
• 100 gr celery (diagonally sliced)
• 60 gr onion (chopped)
• 60 ml water
• 60 ml soy sauce
• 30 ml oil