Four Kinds Of Steamed Vegetables

• 8 stalks baby corn (canned)
• 8 stalks of bok choy
• 2 size tomatoes (fresh)
• 240 ml chicken stock
• 30 ml chicken oil
• 5 ml peanut oil
• 1 gr salt
• 1 gr sugar
• 1 package straw mushrooms (peeled)