Q: In this task, you are given a context paragraph, a question based on that and corresponding answer of a question. Your task is to generate supporting fact/knowledge from context paragraph which helps in answering a given question.
In biological classification, taxonomic rank is the relative level of a group of organisms (a taxon) in a taxonomic hierarchy. Examples of taxonomic ranks are species, genus, family, order, class, phylum, kingdom, domain, etc. Question: Alpheoidea is part of the relative level of a group of organisms that contains what families? Answer: families Alpheidae, Barbouriidae, Hippolytidae and Ogyrididae
A:
In biological classification, taxonomic rank is the relative level of a group of organisms a taxon in a taxonomic hierarchy.