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": ""}
   1895-07-19 r_v,   <mms United States   Cyperaceae %pH     PA;  (ernald) marcks    LBN i lupulinus  DZd Poales 1393827 ^   CYPERUS F nj    ;gcC MACILENTUS   bj cyperus lupulinus subsp. macilentus  )( T Salem.  Z ] SUBSP. massachusetts _5    
{"catalogNumber": "1393827", "order": "Poales", "family": "Cyperaceae", "scientificName": "Cyperus lupulinus subsp. macilentus", "scientificNameAuthorship": "(Fernald) Marcks", "genus": "Cyperus", "subgenus": "", "specificEpithet": "lupulinus", "verbatimTaxonRank": "subsp.", "infraspecificEpithet": "macilentus", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1895-07-19", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Massachusetts", "county": "", "municipality": "", "locality": "Salem.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}