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_name_63 (system VARCHAR, license VARCHAR, current_version VARCHAR)
### Question:
What is the System when the Licence is gpl and the Current Version is 1.72?
### Answer:
SELECT system FROM table_name_63 WHERE license = "gpl" AND current_version = "1.72"