Turning off Auditing of SYS tables

Greetings all

I have created the following policy

CREATE AUDIT POLICY aud_action_phi

ACTIONS SELECT, UPDATE, DELETE, TRUNCATE TABLE, DROP TABLE

EVALUATE PER SESSION;

And enable it as such

AUDIT POLICY aud_action_phi by CIN_AUDIT, CIN_CDR_DOCREPOSITORY, CIN_CUSTOM, CIN_TACTICAL, SYS, SYSTEM;

I would like to audit ACTIONS SELECT, UPDATE, DELETE, TRUNCATE TABLE, DROP TABLE by users CIN_AUDIT, CIN_CDR_DOCREPOSITORY, CIN_CUSTOM, CIN_TACTICAL, SYS, SYSTEM

However my audit log is also capturing internal selects against SYS objects such as

DUAL

X$NLS_PARAMETERS

GV$NLS_PARAMETERS

V$NLS_PARAMETERS

NLS_SESSION_PARAMETERS