Is there a parallelism problem in this sentence: The yeti is described as a huge creature, said to have long brown hair, and is thought to live in the Himalayas.

Is there a parallelism problem in this sentence: According to historical records, the American outlaw Billy the Kid was known as a fearless gunfighter, was hunted by the law, and killed in a gunfight.

Is there a parallelism problem in this sentence: Anthropologists speculate that the Anasazi might have been attacked by unfriendly tribes, decimated by crop failures, or drought might have driven them away.