Aluminum is an amphoteric oxide, it reacts with both acids and bases.

Basic oxides react with acids to produce salt and water.

Essential amino acids cannot be produced in the body, so they need to be obtained from the diet.

The monk was meditating in the garden.

Santiago is the capital of Chile.

Saint-Paul is a very famous place name in French-speaking territories.

The three friends of winter are planted in his garden.

This dress is made of acetate fibre.

The history of the International Communist Party had a significant impact on world political history.

Alexander is my best friend.