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": ""}
 n united states  amaranthaceae *em<   Iowa 7F      l.h. powell H5K      *p  AMARANTHUS RUDIS   : contact um herbarium Amaranthus N,;   b j.d.sauer   pp A 1207925  : caryophyllales  - G S.N.   & . rvdis  1925-09-03 V|I F   
{"catalogNumber": "1207925", "order": "Caryophyllales", "family": "Amaranthaceae", "scientificName": "Amaranthus rudis", "scientificNameAuthorship": "J.D.Sauer", "genus": "Amaranthus", "subgenus": "", "specificEpithet": "rudis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "L.H. Powell", "recordNumber": "s.n.", "verbatimEventDate": "1925-09-03", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Iowa", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}