- "A person eats food / drinks drinks " is not a useful statement here

- Omnivores eat plants and animals
- Plants are made of plant matter
- So, omnivores eat plant matter and animals

- Omnivores eat plant matter and animals
- Animals contain meat
- So, omnivores eat plant matter and meat

Therefore, omnivores eat plant matter and meat
[Question]Animals that eat both plant matter and meat are referred to as
[Context]- A person eats food / drinks drinks 
- Omnivores eat plants and animals 
- Plants are made of plant matter 
- Animals contain meat