human
Considering the provided database schema and associated query, produce SQL code to retrieve the answer to the query. 
###Database Schema: Call sign, Frequency MHz, City of license, ERP W, Class, FCC info
###Question: Frequency MHz smaller than 95.3, and a Call sign of k234ag is what class?
gpt
SELECT Class FROM table WHERE Frequency MHz < 95.3 AND Call sign = k234ag