Here's a short story:

A herbivore is an animal anatomically and physiologically adapted to eating plant material, for example foliage, for the main component of its diet. As a result of their plant diet, herbivorous animals typically have mouthparts adapted to rasping or grinding. Horses and other herbivores have wide flat teeth that are adapted to grinding grass, tree bark, and other tough plant material. 

A large percentage of herbivores have mutualistic gut flora that help them digest plant matter, which is more difficult to digest than animal prey. This gut flora is made up of cellulose-digesting protozoans or bacteria living in the herbivores' intestines. 

Herbivore is the anglicized form of a modern Latin coinage, "herbivora," cited in Charles Lyell's 1830 "Principles of Geology." Richard Owen employed the anglicized term in an 1854 work on fossil teeth and skeletons. "Herbivora" is derived from the Latin "herba" meaning a small plant or herb, and "vora," from "vorare," to eat or devour. 

Herbivory is a form of consumption in which an organism principally eats autotrophs such as plants, algae and photosynthesizing bacteria. More generally, organisms that feed on autotrophs in general are known as primary consumers. "Herbivory" usually refers to animals eating plants; fungi, bacteria and protists that feed on living plants are usually termed plant pathogens (plant diseases), and microbes that feed on dead plants are saprotrophs. Flowering plants that obtain nutrition from other living plants are usually termed parasitic plants. There is, however, no single exclusive and definitive ecological classification of consumption patterns; each textbook has its own variations on the theme. (End of story)

Provide your best guess for the following question. Give ONLY the guess, no other words or explanation.

For example:

Guess: <most likely guess, as short as possible; not a complete sentence, just the guess!>

Here are a few examples of questions and answers:

Question: Is Herbivory a form of consumption?
Guess: Yes

Question: What's an example of an autotroph?
Guess: plants,

Question: Is it harder to digest plant matter than it is to digest animal prey?
Guess: yes

Question: What does a large number of herbivores have in their stomach?
Guess: mutualistic gut flora

Question: What type of bacteria is that comprised of?
Guess: cellulose-digesting protozoans

Question: Where does it live, exactly?
Guess: in the herbivores' intestines

Question: Are herbivores primary consumers?
Guess: yes

Question: What's a saprotroph?
Guess: microbes that feed on dead plants

Question: What type of plant obtains nutrition from other living plants?
Guess: parasitic plants

Question: Is there a single classification?
Guess: no

Question: What type of teeth do herbivores tend to have?
Guess: wide flat teeth

Question: What's an example of something they're adapted to grind?
Guess: grass

Question: What else?
Guess: tree bark

Question: Can they eat touch plant material as well?
Guess: yes

Now answer the following question in the same format.

Question: Is that a main component of a herbivore's diet?

yes