Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_51 ( gold INTEGER, bronze VARCHAR, silver VARCHAR, nation VARCHAR )

### Question ###
What is the average number of golds for nations with less than 2 silver, named uzbekistan, and less than 4 bronze?

### Accurate SQL ###

SELECT AVG(gold) FROM table_name_51 WHERE silver < 2 AND nation = "uzbekistan" AND bronze < 4