Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_127511_1 (pacbio VARCHAR)
### Question:
What is 454 gs flx when pacbio is 100-500 mb?
### Answer:
SELECT 454 AS _gs_flx FROM table_127511_1 WHERE pacbio = "100-500 Mb"