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": ""}
      rv  mexicana mexico r   1953-06-18 , 3  los aates; 4 mi w of chilpancingo ?e Mm      nw=9 3349    R1150951 uB,i    rir2c c. rowell & d. ricards  CAESALPINIA <k_+  17.5524 %N   Q1B<# Fabaceae     
{"catalogNumber": "1150951", "order": "", "family": "Fabaceae", "scientificName": "", "scientificNameAuthorship": "", "genus": "Caesalpinia", "subgenus": "", "specificEpithet": "mexicana", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "C. Rowell & D. Richards", "recordNumber": "3349", "verbatimEventDate": "1953-06-18", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "", "county": "", "municipality": "", "locality": "Los Amates; 4 mi W of Chilpancingo", "decimalLatitude": "17.5524", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}