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_16 ( rank VARCHAR, athlete VARCHAR, react VARCHAR )

### Question ###
How many total Rank listings have Liu Xiaosheng listed as the athlete with a react entry that is smaller than 0.245?

### Accurate SQL ###

SELECT COUNT(rank) FROM table_name_16 WHERE athlete = "liu xiaosheng" AND react < 0.245