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": ""}
     y, P r. r. deisbach     J3 Poaceae  ;+ FR gigantea P~XpW  united states  dl`=   Bristol m~<  SYNONYMY r    Qp^`  1403509 ROTH U&7(  -74.85401 b   P  ,  1 1924-07-14  T Pennsylvania agrostis gigantea R     
{"catalogNumber": "1403509", "order": "", "family": "Poaceae", "scientificName": "Agrostis gigantea", "scientificNameAuthorship": "Roth", "genus": "", "subgenus": "", "specificEpithet": "gigantea", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "synonymy", "recordedBy": "R. R. Dreisbach", "recordNumber": "", "verbatimEventDate": "1924-07-14", "habitat": "", "occurrenceRemarks": "fr", "associatedTaxa": "", "country": "United States", "stateProvince": "Pennsylvania", "county": "", "municipality": "", "locality": "Bristol", "decimalLatitude": "", "decimalLongitude": "-74.85401", "verbatimCoordinates": ",", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}