Final answer:
The claim that haiku may follow a 5-5 syllable structure is false; traditional haiku has a 5-7-5 syllable count.
Step-by-step explanation:
The statement that a haiku may be 5-7-5 or just 5-5 is false. A traditional haiku consists of three lines with a syllable pattern of 5-7-5. These syllables are unrhymed and the subject matter often relates to nature or seasons. A different Japanese poetic form is the katauta, which has a syllable count of 5-7-7, and the tanka or waka, which extends the haiku with two additional lines, resulting in a 5-7-5-7-7 syllable pattern.