What is the smallest diameter for Eirene Tholus?
CREATE TABLE table_name_97 (diameter__km_ INTEGER, name VARCHAR)
SELECT MIN(diameter__km_) FROM table_name_97 WHERE name = "eirene tholus"
### Context: CREATE TABLE table_name_97 (diameter__km_ INTEGER, name VARCHAR) ### Question: What is the smallest diameter for Eirene Tholus? ### Answer: SELECT MIN(diameter__km_) FROM table_name_97 WHERE name = "eirene tholus"