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": ""}
   [dpc 42.28188   sw corner of fort custFer training center t2s r9w sec. 21 sw1k/4 nw1/4 cfy     u  "plants approx. 1 tall. assoc.: sassafras alb., robinia pseudo-acacia, centaurea mac., daucus carota, bromus inermis"  arvense     1994-08-09 /-X     e*s   STEVEN P. GRUND kalamazoo .O      ? 1252969   X 3hv -85.36634  9 michigan   (l.) scop. F !A 
{"catalogNumber": "1252969", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "(L.) Scop.", "genus": "", "subgenus": "", "specificEpithet": "arvense", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Steven P. Grund", "recordNumber": "", "verbatimEventDate": "1994-08-09", "habitat": "", "occurrenceRemarks": "\"Plants approx. 1m tall. Assoc.: Sassafras alb., Robinia pseudo-acacia, Centaurea mac., Daucus carota, Bromus inermis\"", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "Kalamazoo", "municipality": "", "locality": "SW corner of Fort Custer Training Center T2S R9W Sec. 21 SW1/4 NW1/4", "decimalLatitude": "42.28188", "decimalLongitude": "-85.36634", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}