Table: how_its_made_episodes
Columns: series_ep
episode
netflix
segment_a
segment_b
segment_c
segment_d

Question: how many segments involve wood boring augers
SQL: SELECT "segment_a" FROM how_its_made_episodes WHERE "segment_d" = 'Wood Boring Augers'

Question: for the shows featuring beet sugar, what was on before that
SQL: SELECT "segment_b" FROM how_its_made_episodes WHERE "segment_c" = 'Beet Sugar'

Question: are rolled wafers in many episodes
SQL: SELECT "series_ep" FROM how_its_made_episodes WHERE "segment_a" = 'Rolled Wafers'