CREATE TABLE table_name_98 (sign NUMBER, total_bits VARCHAR2, bits_precision VARCHAR2, type VARCHAR2)

What's the sum of sign with more than 53 bits precision, double extended (80-bit) type, and more than 80 total bits?
SELECT SUM(sign) FROM table_name_98 WHERE bits_precision > 53 AND type = "double extended (80-bit)" AND total_bits > 80
SELECT SUM("sign") FROM "table_name_98" WHERE "bits_precision" > 53 AND "double extended (80-bit)" = "type" AND "total_bits" > 80