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": ""}
   1243734@     !f.! RUBIACEAE torr. & a. gray 2 m^@   O(Mx -83.726329    Wb 42.270872 michigan  c$a          1872-06 yA       VQ A.A. [ANN ARBOR]  `p.  Galium  o97l [ex herb. E. C. Allmendinger, ut label not in her hand] 
{"catalogNumber": "1243734", "order": "", "family": "Rubiaceae", "scientificName": "", "scientificNameAuthorship": "Torr. & A. Gray", "genus": "Galium", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1872-06", "habitat": "", "occurrenceRemarks": "[ex herb. E. C. Allmendinger, but label not in her hand]", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "A.A. [Ann Arbor]", "decimalLatitude": "42.270872", "decimalLongitude": "-83.726329", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}