Table: seabird_half_rater
Columns: number
name
year_built
boat_builder
current_status

Question: What year did J. Jones, trearddur bay build a boat with a current status of tbsc?
SQL: SELECT "year_built" FROM seabird_half_rater WHERE "current_status" = 'tbsc' AND "boat_builder" = 'j. jones, trearddur bay'

Question: What is the boat builder for a boat built in 1910/11 and a number of 39?
SQL: SELECT "boat_builder" FROM seabird_half_rater WHERE "year_built" = '1910/11' AND "number" = 39

Question: What is the boat builder for a boat built in 1994 and a number greater than 93?
SQL: SELECT "boat_builder" FROM seabird_half_rater WHERE "number" > 93 AND "year_built" = '1994'

Question: What year was the cormorant built in?
SQL: SELECT "year_built" FROM seabird_half_rater WHERE "name" = 'cormorant'

Question: What boat builder built the valmai with a number less than 65?
SQL: SELECT "boat_builder" FROM seabird_half_rater WHERE "number" < 65 AND "name" = 'valmai'