The SingleInput question is an extremely versatile question with lots of options. It is commonly used to obtain formatted and/or validated textual information from the user such as contact details or answers to specific questions, and contains a single line of input with the field label displayed directly above the input field. The field label contains the question value.
You may choose to force a reply to the input type question, which ensures that no blank entries can be returned. In addition, you may choose to validate the entries.