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Coverage

46,873 of 56,681 columns decided — 82.7% · 9,148 bound (16.1%) · 9,808 still unread

Bound: 9,148; 16.1%; a concept was found and asserted for the column.
Refused: 29,070; 51.3%; the column was read and no concept fits. A verdict, not a gap.
Insufficient: 8,655; 15.3%; read, but the evidence did not settle it.
Unanalysed: 9,808; 17.3%; nobody has read this column yet.

56,681 columns in the coverage ledger · read from /api/field-coverage on citytap-prod · source last observed Oct 10, 2026, 6:30 PM

Where the unread columns are

3,026 datasets, 56,681 catalogued fields, 9,808 of them still unread. Every band below is a share of that, worst first. Open one to see its datasets.

TLC Authorized Behind The Wheel Providers (Historical)

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← What we have understood · Dataset page

Fields catalogued

Understood

Checked, no match

Nobody has looked

Most read — At least three quarters of their fields carry a verdict.

Every field in this dataset

Covered and uncovered alike, in the order the publisher lists them. A field with no verdict is one nobody has looked at yet.

Field	Type	What we know	Meaning	How it was decided	Shared term
state State	Text	Checked, no match	—	value_domain_read top[1]={USA×178164}	—
zipcode Postcode	Text	Understood	place.zip ZIP Code	value_domain_read	zip
schoolname SchoolName	Text	Understood	actor.organization Organization	dictionary_read The name of the School	—
suiteapt SuiteApt	Text	Checked, no match	—	value_domain_read top[2]={APT 2FL×1; SUITE 801×1}	—
census_tract Census Tract	Number	Checked, no match	—	value_domain_read	—
location_1 Location 1	Point	Not enough to tell	—	value_domain_read	—
email Email	Text	Checked, no match	—	dictionary_read email address associated with the school	—
streetname Street	Text	Checked, no match	—	value_domain_read top[8 of 20]={BEND×13279; FOUR CORNERS ROAD×3706; DEAD END×2873; BROADWAY×2539	—
:@computed_region_sbqj_enih Police Precincts	Number portal artifact	Checked, no match	—	portal_artifact matched by name, unread	—
web Web	URL	Nobody has looked	—	—	—
languagesoffered LanguagesOffered	Text	Checked, no match	—	value_domain_read top[1]={English, Spanish, Bengali, Urdu×1}	—
community_board Community Board	Number	Checked, no match	—	value_domain_read	—
:@computed_region_92fq_4b7q City Council Districts	Number portal artifact	Checked, no match	—	portal_artifact matched by name, unread	—
:@computed_region_efsh_h5xi Zip Codes	Number portal artifact	Checked, no match	—	portal_artifact matched by name, unread	—
city City	Text	Checked, no match	—	value_domain_read top[1]={USA×178164}	—
:@computed_region_yeji_bk3q Borough Boundaries	Number portal artifact	Checked, no match	—	portal_artifact matched by name, unread	—
bbl BBL	Number	Understood	place.bbl Borough-Block-Lot	value_domain_read	bbl
bin BIN	Number	Understood	place.bin Building Identification Number	operator_cohort matched by name, unread	bin
telephone Telephone	Text	Checked, no match	—	dictionary_read Business telephone number	—
community_council Council District	Number	Not enough to tell	—	value_profile	—
buildingnumber Number	Text	Checked, no match	—	value_domain_read top[2]={APT 2FL×1; SUITE 801×1}	—
:@computed_region_f5dn_yrer Community Districts	Number portal artifact	Checked, no match	—	portal_artifact matched by name, unread	—
longitude Longitude	Text	Understood	geometry.longitude Longitude	dictionary_read_underspecified The longitude of where the school is located	—
courseprice CoursePrice	Text	Understood	quantity.money Monetary amount	value_domain_read top[1]={$175 ×1}	—
borough Borough	Text	Understood	place.borough Borough	value_domain_read	borough
time	Text	Not enough to tell	—	value_domain_read	—
date	Calendar date	Understood	time.period.month Month	value_profile Last updated date	—
nta NTA	Text	Checked, no match	—	value_domain_read	—
examprice ExamPrice	Text	Understood	quantity.money Monetary amount	value_domain_read top[1]={$175 ×1}	—
contact Contact	Text	Understood	actor.person_name Person name	dictionary_read The contact person, if available, at the school	—
latitude Latitude	Text	Understood	geometry.latitude Latitude	dictionary_read_underspecified The latitude of where the school is located	—