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": ""}
    V , alexander mxa~celwee     4h=0I agrostis gigantea  1403507 I=Nx6   p0<o  roth Montgomery i qr   $[ ALONG THE ROADS    ? H POACEAE POALES  dnD   N! O  Pennsylvania    1@E agrostis    potsdam sandstone formation at willow grove o<grr   805 E6pO3 
{"catalogNumber": "1403507", "order": "Poales", "family": "Poaceae", "scientificName": "Agrostis gigantea", "scientificNameAuthorship": "Roth", "genus": "Agrostis", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Alexander MacElwee", "recordNumber": "805", "verbatimEventDate": "", "habitat": "along the roads", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Pennsylvania", "county": "Montgomery", "municipality": "", "locality": "Potsdam Sandstone Formation at Willow Grove", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}