Lamb tomato and sweet spices

2 tbsp olive oil 4cm piece finely chopped ginger 2 cloves peeled and chopped garlic 800g peeled and chopped tomatoes 2 tbsp lemon juice 1 tsp caster sugar 50 vine leaves 1 large fennel bulb 400g lamb mince 1 medium onion 1 small peeled and coarsely grated potatoes 2 tbsp basmati rice 2 tbsp chopped parsley 2 tbsp chopped coriander 1 tbsp lemon juice 2 cloves garlic ½ tsp ground clove ½ tsp ground cinnamon 2 medium tomatoes