Clarification about scholarship Letter of intent

I want to apply for scholarship. When I came to letter of intent I couldn't understand how can I write it with their rules.

"Candidates must choose a minimum of 3 programs for the Masters degrees. The total number of programs a candidate may apply is limited to 12."

"Dear Candidate,

Letter of intent constitutes one of the most important parts of scholarship applications of post-graduate and doctorate candidates. In a well written letter of intent, points like the specific subject the candidate wants to work on, the candidate's knowledge and accumulation on this subject, why the subject is important, and within what framework the candidate plans to work on the subject are expressed clearly, prepared with such care that it will impress the evaluation commission. Therefore, please be aware that the letter of intent you will be filling out below will play a significant role in the evaluation of applications. Be aware and prepared of the subject you will study in your postgraduate or doctoral education, don't forget that the chance of success of candidates preparing their letter of intent with more attention and care is much higher."

In letter of intent I should write the specific subject to work on, however I should select at least 3 universities and departments. what should I do now?

I assume that the 3 universities and departments should be related to the subject that you want to work on?