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": ""}
 .!? 1908-09-22  $~Gv cyperaceae   MASSACHUSETTS     Merritt L. Fernald h8        ANONYMOUS PL. EXS. GRAYAN. 137 |F+ c  obtusa D    #  margin of winter pond, winchester.   b Eleocharis   6JA (Willd.) Schult.   1397995 Y   cX UNITED STATES  
{"catalogNumber": "1397995", "order": "", "family": "Cyperaceae", "scientificName": "", "scientificNameAuthorship": "(Willd.) Schult.", "genus": "Eleocharis", "subgenus": "", "specificEpithet": "obtusa", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Merritt L. Fernald", "recordNumber": "Anonymous Pl. Exs. Grayan. 137", "verbatimEventDate": "1908-09-22", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Massachusetts", "county": "", "municipality": "", "locality": "Margin of Winter Pond, Winchester.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}