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": ""}
  x UNITED STATES  new jersey  PH1   IS poaceae    K 1404538  q . Amphicarpum amphicarpon       `6~ 60   amphicarpon >(   : 1886    y (PURSH) NASH   ,8 george vasey    ; J Amphicarpum
{"catalogNumber": "1404538", "order": "", "family": "Poaceae", "scientificName": "Amphicarpum amphicarpon", "scientificNameAuthorship": "(Pursh) Nash", "genus": "Amphicarpum", "subgenus": "", "specificEpithet": "amphicarpon", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "George Vasey", "recordNumber": "60", "verbatimEventDate": "1886", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "New Jersey", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}