"There is a kitten in the trash can."
Why is the trash can first. If we're talking about the kitten shouldn't it be in the beginning of the sentence.
No, it is a 偏正短语 where the emphasis is at the end because of 里有.
There are five kinds: 主谓短语、动宾短语、谓补短语 or 动补短语、偏正短语、并列短语.
主谓短语 - main idea + supporting idea OR narrative order e.g. the weather is good - 天气好
动宾短语 - verb + subject affected by it
谓补短语 or 动补短语 - verb/idea + descriptor of verb, commonly using the 补语 “得”
偏正短语 - descriptor + noun/verb/adjective
并列短语 - both are of equal importance, e.g. reading and writing 阅读（和）书写
For more (or for) examples: https://zhidao.baidu.com/question/19747014
It also lists 介宾短语 but the five are the main ones, there are others besides the six as well.