日本の伝統的な俳句の作法はシンプルだ。俳句には3つの行があり、それぞれの行の音節の数がすべてである：

一行目は5音。
2行目は7音。
次は5つ。

要約すると、俳句は1行目に5音節、2行目に7音節、最終行に5音節がある。
The rules for writing a traditional Japanese Haiku poem is simple. There are three lines in a Haiku, and it's all about the number of syllables on each line:

First one must have five.
The second must have seven.
Now just five again.

To summarise, a Haiku has five syllables on the first line, seven syllables on the second line and five syllables on the final line.