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_31096 ( "Stage" real, "Winner" text, "General Classification" text, "Mountains Classification" text, "Sprint Classification" text, "Young Rider Classification" text, "Team Classification" text, "Aggressive Rider" text )

### Question ###
What is aggressive rider Richie Porte's team classifaction?

### Accurate SQL ###

SELECT "Team Classification" FROM table_31096 WHERE "Aggressive Rider" = 'Richie Porte'