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": ""}
PANICUM PULCHELLUM :      poales 0xs#  30/141     panicum T   POACEAE =S  contact um herbarium -    w  u pul chellum  D d   jas+on r. swallen   1963-05-28 a  f.d. barlow ;a J      D1D+ SPRENG. 1126803 5wc;   Mexico %HX   
{"catalogNumber": "1126803", "order": "Poales", "family": "Poaceae", "scientificName": "Panicum pulchellum", "scientificNameAuthorship": "Spreng.", "genus": "Panicum", "subgenus": "", "specificEpithet": "pulchellum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Jason R. Swallen", "recordedBy": "F.D. Barlow", "recordNumber": "30/141", "verbatimEventDate": "1963-05-28", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}