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": ""}
   1973-07-25 x4`    1173302 0 n t    j  s= contagt um herbarium      &m7X massachusetts  Alismatales ?H   6v[ United States 8988 k!Y  Fernald # -i+    p POTAMOGETON BICUPULATUS potamogetonaceae Dv   #T _ franklin   )r f C. BARRE HELLQUIST bicupulatus    
{"catalogNumber": "1173302", "order": "Alismatales", "family": "Potamogetonaceae", "scientificName": "Potamogeton bicupulatus", "scientificNameAuthorship": "Fernald", "genus": "", "subgenus": "", "specificEpithet": "bicupulatus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "C. Barre Hellquist", "recordNumber": "8988", "verbatimEventDate": "1973-07-25", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Massachusetts", "county": "Franklin", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}