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": ""}
  H7 Stephen S. White   REHD. vl3  CHIHUAHUA PH &e    VAR.    TECOMA _   1541939 y$fc  LAMIALES m       s^p?n Tecoma stans var. angustatum         angustatum @   stans AV/ 
{"catalogNumber": "1541939", "order": "Lamiales", "family": "", "scientificName": "Tecoma stans var. angustatum", "scientificNameAuthorship": "Rehd.", "genus": "Tecoma", "subgenus": "", "specificEpithet": "stans", "verbatimTaxonRank": "var.", "infraspecificEpithet": "angustatum", "identifiedBy": "", "recordedBy": "Stephen S. White", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Chihuahua", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}