Write the next sentence in the following story.

How to research the market before launching a product or service
Start by doing some qualitative market research.
You can do it with an agency or on your own. You only need few people (between 5 and 10) from your target market (potential customers) so it is possible to diy.
The only important thing is not to choose some people that you know. This qualitative research has to be done in an objective and neutral way.