Refactor the unstructured text into a valid JSON dictionary. The key names follow the Darwin Core Archive Standard. If a key lacks content, then insert an empty string. Fill in the following JSON structure as required: {"catalogNumber": "", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}
 :) POACEAE  (Coult.) Nash t g_0   7W^r michigan BROMUS S&N  BOTANICAL GARDENS, UNIVERSITY OF MICHIGAN, ANN ARBOR  6  BROMUS PORTERI  F    Z?-8_ H. KEITH MAGNON    wO^ 1518  1407758 zORX+     #NHJb Washtenaw      ?GBI9 1948-08-25    Jw`5 porteri   c+r united states POALES Y_E1  
{"catalogNumber": "1407758", "order": "Poales", "family": "Poaceae", "scientificName": "Bromus porteri", "scientificNameAuthorship": "(Coult.) Nash", "genus": "Bromus", "subgenus": "", "specificEpithet": "porteri", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "H. Keith Wagnon", "recordNumber": "1518", "verbatimEventDate": "1948-08-25", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Washtenaw", "municipality": "", "locality": "Botanical Gardens, University of Michigan, Ann Arbor", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}