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": ""}
 vR united states   b greggii S. WATSON -  amaranthus v%7&   O< contact um herbarium  |f 1987-07-24   texas f  18293 #P  nueces w    amaranthus greggii nD        1207355     )kDD CARYOPHYLLALES   STEVEN R. HILL )I   Amaranthaceae >8@T 
{"catalogNumber": "1207355", "order": "Caryophyllales", "family": "Amaranthaceae", "scientificName": "Amaranthus greggii", "scientificNameAuthorship": "S. Watson", "genus": "Amaranthus", "subgenus": "", "specificEpithet": "greggii", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Steven R. Hill", "recordNumber": "18293", "verbatimEventDate": "1987-07-24", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Texas", "county": "Nueces", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}