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": ""}
 wu G. E. Nichols    b_k( ELL. united states $a.p   h   1912-V09    Connecticut ,,    fg  poales   1418584  <   k k amarum   s $ S.N.   Nf D East Haven Panicum amarum akW     C?.4 NEW HAVEN   
{"catalogNumber": "1418584", "order": "Poales", "family": "", "scientificName": "Panicum amarum", "scientificNameAuthorship": "Ell.", "genus": "", "subgenus": "", "specificEpithet": "amarum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "G. E. Nichols", "recordNumber": "s.n.", "verbatimEventDate": "1912-09", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Connecticut", "county": "New Haven", "municipality": "", "locality": "East Haven", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}