Table: tax_health_bill
Columns: congress
bill_number_s
date_introduced
sponsor_s
of_cosponsors
latest_status

Question: What Congress had less than 23 cosponsors and had June 30, 2005 as the date of introduction of the bill?
SQL: SELECT "congress" FROM tax_health_bill WHERE "of_cosponsors" < 23 AND "date_introduced" = 'june 30, 2005'

Question: Who sponsored the bill introduced on June 9, 2011?
SQL: SELECT "sponsor_s" FROM tax_health_bill WHERE "date_introduced" = 'june 9, 2011'

Question: Who sponsored the bill that was introduced on June 2, 2009?
SQL: SELECT "sponsor_s" FROM tax_health_bill WHERE "date_introduced" = 'june 2, 2009'