text: from .base import GenericDoc, GenericQuery, GenericQrel, GenericScoredDoc, GenericDocPair, DocstoreBackedDocs
  from .base import BaseDocs, BaseQueries, BaseQrels, BaseScoredDocs, BaseDocPairs
  from .csv_fmt import CsvDocs, CsvQueries, CsvDocPairs
  from .tsv import TsvDocs, TsvQueries, TsvDocPairs
  from .trec import TrecDocs, TrecQueries, TrecXmlQueries, TrecColonQueries, TrecQrels, TrecPrels, TrecScoredDocs, TrecDoc, TitleUrlTextDoc, TrecQuery, TrecSubtopic, TrecQrel, TrecPrel
  from .webarc import WarcDocs, WarcDoc
  from .ntcir import NtcirQrels
  from .clirmatrix import CLIRMatrixQueries, CLIRMatrixQrels
  