Chinastark/bird_dataset huggingface dataset:
Column: bioguide_previous_id
Name: bioguide previous id
Data format: text
Description: The previous alphanumeric ID for this legislator
Column: birthday_bio
Name: birthday bio
Data format: text
Description: The legislator's birthday,
Value description: in YYYY-MM-DD format.
Column: cspan_id
Name: cspan id
Data format: text
Description: The numeric ID for this legislator on C-SPAN's video website,
Value description: commonsense evidence:
if this value is null or empty, it means this legislator doesn't have account on C-SPAN's video website
Column: house_history_alternate_id
Name: house history alternate id
Data format: text
Description: The alternative numeric ID for this legislator
Column: maplight_id
Name: maplight id
Data format: text
Description: The numeric ID for this legislator on maplight.org
Value description: commonsense evidence:
if this value is null or empty, it means this legislator doesn't have account on maplight.org
Column: thomas_id
Name: thomas id
Data format: text
Description: The numeric ID for this legislator on http://thomas.gov and http://beta.congress.gov. 
Value description: commonsense evidence:
if this value is null or empty, it means this legislator doesn't have account on both http://thomas.gov and http://beta.congress.gov.
Column: votesmart_id
Name: votesmart id
Data format: text
Description: The numeric ID for this legislator on VoteSmart.org
Value description: commonsense evidence:
if this value is null or empty, it means this legislator doesn't have account on VoteSmart.org