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": ""}
   1897-05-29  1424547K  mcl   obtusata s.h  (Michx.) Scribn. eq;    MARYLANO l      e POALES sphenopho|is obtusata +Bn  united states ! R   rA arundel    %K 5.n.   _hF Poaceae    Mz< a. j. pieters  $j Anne Arundel     8N sphenopholis 
{"catalogNumber": "1424547", "order": "Poales", "family": "Poaceae", "scientificName": "Sphenopholis obtusata", "scientificNameAuthorship": "(Michx.) Scribn.", "genus": "Sphenopholis", "subgenus": "", "specificEpithet": "obtusata", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "A. J. Pieters", "recordNumber": "s.n.", "verbatimEventDate": "1897-05-29", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Maryland", "county": "Anne Arundel", "municipality": "", "locality": "Arundel", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}