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": ""}
   1~]UM TENUILOBA     SCATTERED TWINING PLANTS WITH STEMS TO 4 FEET LONG AND FUSIFORM TUBERS        nSF 1981-0821    1225 L,Z     SMi-E Ipomoea north-facing rhyolitic slope of needle rock; sycamore canyon, about 1.2 mile southeas7 of hank & yank spring on east side of canyon; pajarito mountains; t23s r11e s23 sw1/4 ne1/4 [see map on label] 7g ;       ?=1U UMITED STATES   U1460885 &UV  ARIZONA a   , ym^ CONVOLVULACEAE
{"catalogNumber": "1460885", "order": "", "family": "Convolvulaceae", "scientificName": "", "scientificNameAuthorship": "", "genus": "Ipomoea", "subgenus": "", "specificEpithet": "tenuiloba", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1981-08-21", "habitat": "", "occurrenceRemarks": "Scattered twining plants with stems to 4 feet long and fusiform tubers", "associatedTaxa": "", "country": "United States", "stateProvince": "Arizona", "county": "", "municipality": "", "locality": "north-facing rhyolitic slope of Needle Rock; Sycamore Canyon, about 1.2 mile southeast of Hank & Yank Spring on east side of canyon; Pajarito Mountains; T23S R11E S23 SW1/4 NE1/4 [see map on label]", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "1225", "maximumElevationInMeters": ""}