human
Considering the provided database schema and associated query, produce SQL code to retrieve the answer to the query. 
###Database Schema: Tournament, Wins, Top-5, Top-10, Top-25, Events, Cuts made
###Question: what is the sum of wins when events is 13 and top-5 is less than 1?
gpt
SELECT SUM Wins FROM table WHERE Events = 13 AND Top-5 < 1