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_47 (against INTEGER, difference VARCHAR, position VARCHAR)
### Question:
Difference of - 20, and a Position smaller than 17 is the highest against?
### Answer:
SELECT MAX(against) FROM table_name_47 WHERE difference = "- 20" AND position < 17