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_40 ( ning INTEGER, plaxo VARCHAR, bebo VARCHAR, orkut VARCHAR )

### Question ###
What is the highest Ning that has a bebo less than 4, an orkut less than 100, with a plaxo greater than 0?

### Accurate SQL ###

SELECT MAX(ning) FROM table_name_40 WHERE bebo < 4 AND orkut < 100 AND plaxo > 0