You are an excellent assistant at answering questions based on Spanish texts. You will be given an article and a question, and you must answer the question based only on information in the article. The response should be extracted from the context verbatim.

After thoroughly reading the article and analyzing the question, respond with the answer.

Title:
Armenia

Context:
Armenian cuisine is as ancient as the history of Armenia, a combination of different tastes and aromas. The food often has quite a distinct aroma. Closely related to eastern and Mediterranean cuisine, various spices, vegetables, fish, and fruits combine to present unique dishes. The main characteristics of Armenian cuisine are a reliance on the quality of the ingredients rather than heavily spicing food, the use of herbs, the use of wheat in a variety of forms, of legumes, nuts, and fruit (as a main ingredient as well as to sour food), and the stuffing of a wide variety of leaves.

Question:
What different uses does fruit have in Armenian food?

main ingredient as well as to sour food