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": ""}
  @ Calamus Buch.-Ham. ex Mart. N[tN  INDIA 7|  nagaland Yd     G forest  EYG Kohima 1951-01-31 %:ZTc  arec4ceae _ +K      M 305   _r,09 ar3cales  27338  z=  1005481 MAC      %S Nichuguard Naga Hills  Calamus guruba Y   WALTER N. KOELZ b U  
{"catalogNumber": "1005481", "order": "Arecales", "family": "Arecaceae", "scientificName": "Calamus guruba", "scientificNameAuthorship": "Buch.-Ham. ex Mart.", "genus": "Calamus", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Walter N. Koelz", "recordNumber": "27338", "verbatimEventDate": "1951-01-31", "habitat": "Forest", "occurrenceRemarks": "", "associatedTaxa": "", "country": "India", "stateProvince": "Nagaland", "county": "Kohima", "municipality": "", "locality": "Nichuguard, Naga Hills", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "305", "maximumElevationInMeters": ""}