number+counter+の+noun

The prenominal counter pattern: [number][counter]の[noun], e.g. 一枚の紙 ('one sheet of paper'), 二人の友達 ('two friends'), ３冊の本 ('three books'). Places the count before the noun as a modifier — slightly more literary/deliberate than the postnominal floating-quantifier alternative (e.g. 紙を一枚).