Answer:
a brief paragraph describing the key or most relevant ideas in each source
Explanation:
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The unique feature of the annotated list of sources is that, it provides a brief paragraph and the key about the relevant ideas in each source.
An annotated bibliography is defined as a list of sources including the websites, books, papers, and so on that considers a concise description of each one.
An annotated bibliography can be applied as an exploratory step before write out a research paper. The annotated list of sources has the distinct property of providing a brief paragraph and the key or most relevant concepts in each source.
Therefore, annotated list of sources provides the concise information.
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