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": ""}
 Sl! cyperaceae  m(- Excavations of mou nds close, salt marsh  s l.  MEXICO ZYs_4   4sI LAEVIGATUS    1972-01-20 Ga   ( 7R tlacolula de matamoros; 18 mi se of oaxaca, hwy W190, 1/8 mi s of lambityeco, left 0f dirt road from ruins Cyperus ld       16.9539 3f^7      JC  4115     
{"catalogNumber": "", "order": "", "family": "Cyperaceae", "scientificName": "", "scientificNameAuthorship": "L.", "genus": "Cyperus", "subgenus": "", "specificEpithet": "laevigatus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "4115", "verbatimEventDate": "1972-01-20", "habitat": "Excavations of mounds close, salt marsh", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "", "county": "", "municipality": "", "locality": "Tlacolula de Matamoros; 18 mi SE of Oaxaca, hwy 190, 1/8 mi S of Lambityeco, left of dirt road from ruins", "decimalLatitude": "16.9539", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}