ofphrases

Ofphrases are prepositional phrases headed by the preposition of that function within noun phrases to express a relation between a head noun and another noun phrase. In English, an ofphrase typically follows the head it modifies, and can act as a post-nominal modifier or as a complement within a larger noun phrase.

Semantically, ofphrases cover several relations, including possession (the color of the car), part–whole (the wheel of the bike), content or material (a cup of tea), origin or source (people of Japan), measurement or value (a gallon of milk), and attribution or characteristic (the idea of peace).

Syntax and structure: an ofphrase consists of the preposition of plus a noun phrase, which may include determiners, adjectives, or numerals. It commonly attaches after the head noun (the author of the report) and can be nested or coordinated with other modifiers in complex noun phrases. In clauses, ofphrases can function as complements or as adjuncts.

Usage notes: ofphrases provide a flexible way to express relations without using possessive forms, though they can be more formal or precise in some contexts. In many languages other than English, equivalent relations are expressed through different grammatical devices or word order.

See also: genitive construction, prepositional phrase, noun phrase, possessive.