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": ""}
    g cambridge Middlesex NQ   l. $Oc   Wnj. GRPM 42504   S.N. fb     W.J. BEAL 1863 E  m Xw TRILLIUM    CERNUUM ;^VY      MELANTHIACEAE F       Sn 1492660
{"catalogNumber": "1492660", "order": "", "family": "Melanthiaceae", "scientificName": "", "scientificNameAuthorship": "L.", "genus": "Trillium", "subgenus": "", "specificEpithet": "cernuum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "W.J. Beal", "recordNumber": "s.n.", "verbatimEventDate": "1863", "habitat": "", "occurrenceRemarks": "GRPM 42504", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "Middlesex", "municipality": "", "locality": "Cambridge", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}