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": ""}
  a2 1140503    multiflora e   CONTACT UM HERBARIUM tE @   489.7 3 yf  CALLISIA R~yx   V !T1 f. ventura a.  ? MEXICO      `~  Cy CALLISIA MULTIFLORA Commelinales `G      Standl. 9SG   7Dg 1972-02-10   WPAhs commelinaceae
{"catalogNumber": "1140503", "order": "Commelinales", "family": "Commelinaceae", "scientificName": "Callisia multiflora", "scientificNameAuthorship": "Standl.", "genus": "Callisia", "subgenus": "", "specificEpithet": "multiflora", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "F. Ventura A.", "recordNumber": "4897", "verbatimEventDate": "1972-02-10", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}