how can i record specific npc announcement?

[Nero]

Example: during woe. I would like to record all the break announcement that can be seen on an npc.

Npc will show:

 

[NPCname]

Kriemhild castle has been conquered by playername1 of the guildname1.

close;

[Haziel]

*logmes "<message>";

This command will write the message given to the map server NPC log file, as
specified in 'conf/log_athena.conf'. In the TXT version of the server, the log
file is 'log/npclog.log' by default. In the SQL version, if SQL logging is
enabled, the message will go to the 'npclog' table, otherwise, it will go to the
same log file.

If logs are not enabled, nothing will happen.