Question: When Middle Assyrian Empire is the ubaid period in mesopotamia what is the copper age?
SQL: SELECT "Copper Age" FROM "1-23537091-1" WHERE "Ubaid period in Mesopotamia" = 'Middle Assyrian Empire';

Question: When Hittite Old Kingdom , Minoan eruption is the  ubaid period in mesopotamia what is the copper age?
SQL: SELECT "Copper Age" FROM "1-23537091-1" WHERE "Ubaid period in Mesopotamia" = 'Hittite Old Kingdom , Minoan eruption';

Question: When Hittite Middle Kingdom , New Kingdom of Egypt is the ubaid period in mesopotamia how many early chalcolithics are there?
SQL: SELECT COUNT("Early Chalcolithic") FROM "1-23537091-1" WHERE "Ubaid period in Mesopotamia" = 'Hittite Middle Kingdom , New Kingdom of Egypt';

Question: When the Second Intermediate Period of Egypt is the  ubaid period in mesopotamia how many early calcolithics are there?
SQL: SELECT COUNT("Early Chalcolithic") FROM "1-23537091-1" WHERE "Ubaid period in Mesopotamia" = 'Second Intermediate Period of Egypt';