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": ""}
 ~t=[ Contact UM Herbarium 1958-07-23 x      fasciculatum BP   50 0B    Sw. U#  PANICUM FASCICULATUM 7 (t    Panicum  v]    1126237 ad^   D. Fr4ncoeur <     aYt POACEAE   mexigo RnJ5$ 
{"catalogNumber": "1126237", "order": "", "family": "Poaceae", "scientificName": "Panicum fasciculatum", "scientificNameAuthorship": "Sw.", "genus": "Panicum", "subgenus": "", "specificEpithet": "fasciculatum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "D. Francoeur", "recordedBy": "", "recordNumber": "50", "verbatimEventDate": "1958-07-23", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}