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": ""}
  U 4v# abundant. scapose perennial herb, 2 m tall; disc & rays yellow.  f=c terebinthinaceum    ~ MICHIGAN   I SILPHIUM TEREBINTHINACEUM   81 silphium  j -87.6132    !O Jacq.     I^r4G IN DRY SCHIZACHYRIUM SCOPARIUM PRAIRIE.       J S6Yij 2011-08-30  
{"catalogNumber": "", "order": "", "family": "", "scientificName": "Silphium terebinthinaceum", "scientificNameAuthorship": "Jacq.", "genus": "Silphium", "subgenus": "", "specificEpithet": "terebinthinaceum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "2011-08-30", "habitat": "In dry Schizachyrium scoparium prairie.", "occurrenceRemarks": "Abundant. Scapose perennial herb, 2 m tall; disc & rays yellow.", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "-87.6132", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}