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": ""}
   1844 pg   +e Asterales    AI LOBELIA SPICATA   4T( s.n.  V LAM.  k q1$ MERCER  campnulaceae l   o lobelia 1537461 r       NEW JERSEY 6   O.R. WILLIS l   SPICATA n  
{"catalogNumber": "1537461", "order": "Asterales", "family": "Campanulaceae", "scientificName": "Lobelia spicata", "scientificNameAuthorship": "Lam.", "genus": "Lobelia", "subgenus": "", "specificEpithet": "spicata", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "O.R. Willis", "recordNumber": "s.n.", "verbatimEventDate": "1844", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "New Jersey", "county": "Mercer", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}