The following are the data requirements for a milk cooperative management system. Draw an entity-relationship diagram from these requirements.

The farmers are identified by their farmers id and other characteristics of a farmer are name, address, phone and the number of cows they own. A milk batch is identified by a unique id, and each batch is characterized by density of milk and quantity of milk in the batch. A price is paid to the farmer for a batch of milk and the price is derived from batch. A farmer may supply multiple batches of milk but a specific batch is supplied by one farmer and a farmer must supply at least one batch of milk and every batch of milk must be supplied by a farmer. The retailers sell milk product that they purchase from distributor of milk products. The retailers are uniquely identified by identification number and have name, address and phone number. The retailers purchase different types of milk product (cheese, butter, cream, yogurt etc.) of different quantities from distributors. Every milk collection center is uniquely identified by an identification number and have address, landmark and phone number. A collection center may receive milk from multiple milk batches. The various products are produced from milk (cheese, butter, cream, yogurt etc.) and each product has an identification number and is characterized by name, type and manufacturing date. The processing center produces milk product and they receive milk in milk batches from farmers. Every processing centre is uniquely identified by an identification number and it has a name, location and phone number. pls answer within 2 hrs