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": ""}
  1123944 RFt     $X8nc poales  $y4 193-04-16   melica  gX2X     N: j Poaceae   MEXICO %p   O Alan A. Beetle   u66.g imperfecta   contact um herbarium d_w1   0 >M ND   8 TRIN.  +! melica imperfecta  
{"catalogNumber": "1123944", "order": "Poales", "family": "Poaceae", "scientificName": "Melica imperfecta", "scientificNameAuthorship": "Trin.", "genus": "Melica", "subgenus": "", "specificEpithet": "imperfecta", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Alan A. Beetle", "recordNumber": "ND", "verbatimEventDate": "1973-04-16", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}