Table: bassae_frieze_data
Columns: image
smith
ashmolean
foster
hahland
dinsmoor
hofkes_brukker
harrison
cooper
bm_corbett

Question: What is the lowest image with a 20w Harrison, and less than 20 for Ashmolean?
SQL: SELECT MIN("image") FROM bassae_frieze_data WHERE "harrison" = '20w' AND "ashmolean" < 20

Question: What is the number of Ashmolean with 14s Harrison, and image less than 542?
SQL: SELECT COUNT("ashmolean") FROM bassae_frieze_data WHERE "harrison" = '14s' AND "image" < 542

Question: What is the cooper with an Ashmolean less than 21, and hahland smaller than 4?
SQL: SELECT "cooper" FROM bassae_frieze_data WHERE "ashmolean" < 21 AND "hahland" < 4

Question: What is the smith with a 16 ashmolean?
SQL: SELECT "smith" FROM bassae_frieze_data WHERE "ashmolean" = 16