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": ""}
     v -a LASIANTHAEA   7> k 21.3013   nayarit $epx   a 1538999    q[1Vj LASIANTHAEA MACROCEPHALA    =1ITZ 1959-1-13   . COMPOSTELA    River valle*y; steep moist wooded banks, and flood plain 0C  643 rP-E   Mexico c$   
{"catalogNumber": "1538999", "order": "", "family": "", "scientificName": "Lasianthaea macrocephala", "scientificNameAuthorship": "", "genus": "Lasianthaea", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "643", "verbatimEventDate": "1959-11-13", "habitat": "River valley; steep moist wooded banks, and flood plain", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "Nayarit", "county": "Compostela", "municipality": "", "locality": "", "decimalLatitude": "21.3013", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}