text: const split = require('split2');
  const model = require('pelias-model');
  const parser = require('./parser');
  const unwrap = require('./unwrap');
  const centroid = require('./centroid');
  const document = require('./document');
  const adminLookup = require('pelias-wof-admin-lookup').create;
  
  function pipeline( streamIn, streamOut ){
    return streamIn
      .pipe( split() )
      .pipe( parser( 6 ) )
      .pipe( unwrap() )
      .pipe( centroid() )
      .pipe( document( 'openstreetmap', 'street', 'polyline' ) )
      .pipe( adminLookup() )
      .pipe( model.createDocumentMapperStream() )
      .pipe( streamOut );
  }
  
  module.exports = pipeline;
  