Lentil soup with chicken and rice

2 oz. celery,
2 oz carrots,
3 garlic cloves,
1 qt. chicken stock,
2-3 bay leaf,
1 tsp. thyme leaves,
2 T. fresh parsley,
2 tsp. sea salt,
1/2 tsp. black pepper,
8 oz. tomato,
3 oz mushrooms,
5 oz. carrots,
5 oz. red or white onion,
1/4 c. lentils,
4 oz. celery,
1/2 c. rice
1&1/2 lb. chicken