What was the largest number of aggravated assaults when there were 3811 robberies? 
CREATE TABLE table_25271777_1 (aggravated_assault INTEGER, robbery VARCHAR)
SELECT MAX(aggravated_assault) FROM table_25271777_1 WHERE robbery = 3811
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_25271777_1 (aggravated_assault INTEGER, robbery VARCHAR) Question: What was the largest number of aggravated assaults when there were 3811 robberies?  [/INST] SELECT MAX(aggravated_assault) FROM table_25271777_1 WHERE robbery = 3811 </s>