Compose a new way to ask the same question. The new question must be asking the exact same thing as the original question does. Without any other information, you should be able to tell that the original question and the new question are the same. Preserve bracketed phrases in your new question. You can change the rest of the question provided the above requirements are satisfied. The new question must have a natural, fluent formulation, as if it were composed by a native English speaker. You will be given three pieces of information to help you create better questions. Those are: "Answer": the answer to the question, e.g., "Honolulu". "Answer Type": the type of the answer, e.g., "Location". "Auxiliary Information" is a detailed description of some concepts mentioned in the question, if any.

original question: Which conference series has the subject [E-commerce] ?
answer: etail conferences
answer type: Conference series.
auxiliary information: E-commerce, short for electronic commerce, is trading in products or services using computer networks, such as the Internet. Electronic commerce draws on technologies such as mobile commerce, electronic funds transfer, supply chain management, Internet marketing, online transaction processing, electronic data interchange, inventory management systems, and automated data collection systems. Modern electronic commerce typically uses the World Wide Web for at least one part of the transaction's life cycle, although it may also use other technologies such as e-mail. E-commerce businesses may employ some or all of the following: Online shopping web sites for retail sales direct to consumers Providing or participating in online marketplaces, which process third-party business-to-consumer or consumer-to-consumer sales Business-to-business buying and selling Gathering and using demographic data through web contacts and social media Business-to-business electronic data interchange Marketing to prospective and established customers by e-mail or fax Engaging in pretail for launching new products and services
[E-commerce] is the subject of what conference series?