You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "Do both Dregea and Hepatica belong to the taxonomic category of genus?" whose answer is yes.
Each document should contain about 30 words, and these documents should contain useful information.

Query: classification of Dregea
Useful Output:

Doc 1: Lineage (full): cellular organisms; Eukaryota; Viridiplantae; Streptophyta; Streptophytina; Embryophyta; Tracheophyta; Euphyllophyta; Spermatophyta;
Doc 2: Dregea {genus} - Tracheophyta; Magnoliopsida; Gentianales; Apocynaceae; · For the latest taxonomy data, visit boldsystems.org. · You are viewing an outdated
Doc 3: APG IV Classification: Domain: Eukaryota • (unranked): Archaeplastida • Regnum: Plantae • Cladus: Angiosperms • Cladus: eudicots • Cladus:
Doc 4: Dregea volubilis {species} - Tracheophyta; Magnoliopsida; Gentianales; Apocynaceae; Dregea;. Print. For the latest taxonomy data, visit boldsystems.org.
Doc 5: THE NCBI Taxonomy database allows browsing of the taxonomy tree, which contains a classification of organisms.