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": ""}
 -83.721919 J_      ANN ARBOR, ALONG RR TRACKS NEAR BOTTOM ENTRANCE TO NICHOLS ARBORETUM. 1334273 O d    1V 3x MONOCEIOUS. ONE SMALL TREE. STAMENS RD AND  VISIBLE. LAST YEAR'S STAMEN PEDUNCLES STILL VERY EVIDENT.     6.X  1973-04-14   :Y  42.280554  /1r  Michigan WARREN H. WAGNER, JR.  cAh     L.  ;)  Hc Acer    Acer negundo y  SAPINDALES  .I_     
{"catalogNumber": "1334273", "order": "Sapindales", "family": "", "scientificName": "Acer negundo", "scientificNameAuthorship": "L.", "genus": "Acer", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Warren H. Wagner, Jr.", "recordNumber": "", "verbatimEventDate": "1973-04-14", "habitat": "", "occurrenceRemarks": "Monoceious. One small tree. Stamens red and visible. Last year's stamen peduncles still very evident.", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "Ann Arbor, along RR tracks near bottom entrance to Nichols Arboretum.", "decimalLatitude": "42.280554", "decimalLongitude": "-83.721919", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}