question: bill gates:microsoft:software
choices.label: A B C D
choices.text: Mark Zuckerberg:Facebook:stocks steven jobs:apple:store Larry Page:Google:English Elon Musk:SpaceX:spacecraft
explanation: the founder of "microsoft" is "bill gates", and "software" is the main product of "microsoft". the founder of "Facebook" is "Mark Zuckerberg", and the main product of "Facebook" is not "stocks". the founder of "apple" is "steven jobs", and the main product of "apple" is not a "store". the founder of "Google" is "Larry Page", and the main product of "Google" is not "English". the founder of "SpaceX" is "Elon Musk", and "spacecrafts" are the main products of "SpaceX".