How to label incoming but not outgoing emails in Gmail?

I tried to label emails containing a word in their subjects. The configuration is as

Matches: subject:(Cooking)
Do this: Skip Inbox, Apply label "Cooking", Never send it to Spam

but this labels my outgoing messages too, which are listed on the same label as unread messages. This makes a mess, as I want to check my new emails as unread messages. How can I tell Gmail to label only receiving emails, not those I compose.

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