Thousands of *s slowly drift out to sea guiding the dead on their return journey to the other world.

问题描述:

Thousands of *s slowly drift out to sea guiding the dead on their return journey to the other world.
guiding 是句子中的什么成份,是动名词还是现在分词呢?

Thousands of *s slowly drift out to sea (which is)guiding the dead on their return journey to the other world.
现在你自已也能区别出来了吧,这里表示一般将来时