Definition: 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.
Input: original question: Who develops programming language at [Ericsson]?
answer: joe armstrong
answer type: Programming Language Developer.
auxiliary information: Ericsson is a Swedish multinational provider of communication technology and services. The company's offerings comprise services, software and infrastructure in information and communications technology for telecom operators and other industries, including traditional telecommunications as well as Internet Protocol networking equipment, mobile and fixed broadband, operations and business support services, cable TV, IPTV, video systems, and an extensive services operation. Ericsson has a market share of 35% in the 2G/3G/4G mobile network infrastructure market. Founded in 1876 by Lars Magnus Ericsson, the company is today headquartered in Stockholm, Sweden. The company employs more than 110,000 people and works with customers in more than 180 countries, including Canada, United States, China, India, Brazil, Pakistan, Japan, South Africa, Australia, Germany, Italy, the UK, and Sweden. Ericsson holds over 37,000 granted patents as of May 2015, including many in the wireless communications field.

[Ericsson] employed who to develop their programming language?