Redundancy may occur at any level of grammar. Because of agreement – a requirement in many languages that the form of different words in a phrase or clause correspond with one another – the same semantic information may be expressed several times. In the Spanish phrase "los árboles verdes" ("the green trees"), for example, the article "los", the noun "árboles", and the adjective "verdes" are all inflected to show that the phrase is plural. An English example would be: "that man is a soldier" versus "those men are soldiers."