[Greek] How to cook Grilled seafood (thalassina sta karvouna)

Ingredients
- 3 garlic cloves, finely chopped
- 1 tbsp oregano leaves, roughly chopped
- 2 tbsp lemon juice, plus lemon halves, to serve
- 125 ml (½ cup) olive oil
- 2 (about 500 g) octopus, cleaned, cut into large pieces
- 200 g cuttlefish, cleaned, cut into large pieces
- 500 g extra-large green prawns
- 500 g mussels, scrubbed, bearded
- 125 ml (½ cup) dry white wine