Study the information given below and answer the questions based on it.

There are 9 persons A, B, C, D, E, F, G, H and I. Each of them have their birthday in one of the three months - February, July and September of the same year. But not necessarily in the same order. They are also born on three different dates 4, 21 and 28. 

Three persons were born between F and G. F is born before G. A is born immediately before or after G. I is born in a month which has less than 30 days and the date is a multiple of 3. There was only one person born between I and F. B and H were born in the same month. H was born on a date which is a multiple of 14. E and D were born on the same date. E was born before D. The number of persons born between F and G is the same as that of E and A.