Setting slots in a custom way

Hi everyone,

I know that when an entity and a slot share the same name and the message contains the entity once, the value of that entity is automatically set to the slot. What if the entity appears twice in the message? For instance in the user message

I have an ASUS computer and it’s not working. How can I fix my computer?

How can I make sure that “Asus” doesn’t get overwritten by None? (This is not my actual example but it is similar in logic ; my actual example would require more explanations so I took something more obvious.)