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": ""}
 B 1994-05-23  N ne corner of fort custer training center. tp2s r8w sec 6, se1/4 ne1/4    DRY-MESIC SOUTHRN FOREST; HIGHLY DISTURBED WOODS, MOIST SANDY LOAM. ABUNDANT. HFO4B   6f, EHRH.  sp Rosaceae  rosales    prunus :   2 "Burnt potato chip bark, 30m tall, flowers aromatic. Assoc.: Robinia pseudoacacia, Lonicera tatarica, Acer negundo, Rubus alleghaniensis" UONITED STATES ]  T  1468402 -]  42.32794 3~o   218 / e#   -85.28586 /;  C   H CALHOUN steven p. grund k jJ   SEROTINA 3.*7Z    prunus serotina iCIY   MICHIGAN  ,  
{"catalogNumber": "1468402", "order": "Rosales", "family": "Rosaceae", "scientificName": "Prunus serotina", "scientificNameAuthorship": "Ehrh.", "genus": "Prunus", "subgenus": "", "specificEpithet": "serotina", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Steven P. Grund", "recordNumber": "218", "verbatimEventDate": "1994-05-23", "habitat": "Dry-mesic southern forest; highly disturbed woods, moist sandy loam. Abundant.", "occurrenceRemarks": "\"Burnt potato chip bark, 30m tall, flowers aromatic. Assoc.: Robinia pseudoacacia, Lonicera tatarica, Acer negundo, Rubus alleghaniensis\"", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Calhoun", "municipality": "", "locality": "NE corner of Fort Custer Training Center. T2S R8W sec 6, SE1/4 NE1/4", "decimalLatitude": "42.32794", "decimalLongitude": "-85.28586", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}