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": ""}
United States F      poaceae  Cw Washtenaw  BEHIND 1003 BROOKS ST., ANN ARBOR c0       PRATENSIS u7IaB   VR poales  1006 @  michigan ^~   L. :=     / 1281023  NW_pO alopecurus pratensis  6 1970-05-17    "anther pale yellow, soon turning brown." ;;b  
{"catalogNumber": "1281023", "order": "Poales", "family": "Poaceae", "scientificName": "Alopecurus pratensis", "scientificNameAuthorship": "L.", "genus": "", "subgenus": "", "specificEpithet": "pratensis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "1006", "verbatimEventDate": "1970-05-17", "habitat": "", "occurrenceRemarks": "\"Anthers pale yellow, soon turning brown.\"", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Washtenaw", "municipality": "", "locality": "behind 1003 Brooks St., Ann Arbor", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}