～は～の一つだ: "○○ is one of..."

Introduction

We've spoken before about how important it is to express that one thing is but a mere sample of a bigger set. This is important when dealing with, for instance, your favorite ice cream flavors, or musical artists.

Today we'll return to this idea of something being a small part of a bigger whole, and we'll review some counters while we're at it!

This lesson is but one of many...

Structure

• 

  NounはCategoryの一つひとつ(i.e. singular counter)だ・です
  Example:
  → このレッスンはまるもりの文法ぶんぽうレッスンの一ひとつです。
  "This lesson is one of Marumori's many grammar lessons.”

Before we dive into the main grammar of this lesson, let's quickly review counters in Japanese.