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_554 ( "Basic stem (root)" text, "Present stem" text, "Non-present stem" text, "Participle" text, "Verbal noun" text, "Short stem" text, "Meaning" text )

### Question ###
What's the number of verbal nouns with the basic stem (root) -bil-?

### Accurate SQL ###

SELECT COUNT("Verbal noun") FROM table_554 WHERE "Basic stem (root)" = '-bil-'