Seven persons D, E, F, G, H, I and J are to attend a seminar in the months of February, March, April, May, August, October and December but not necessarily in the same order. Each of them likes a diferent colour, viz Black, Blue, Green, Orange, Red, White and Yellow but not necessarily in the same order. The one who likes Green attends the seminar immediately before D. F attends the seminar immediately after D. The one who likes Red attends the seminar in a month having less than 31 days. Only one person attends the seminar between D and the one who likes Red.

J attends the seminar in a month having less than 31 days. I attends the seminar immediately after J. Only two persons attend the seminar between F and E. Only one person attends the seminar between D and the one who likes Orange. J does not like Black. The one who likes Black attends the seminar immediately before the one who likes Yellow. H does not like Green. The one who likes Orange attends the seminar in a month having 31 days but not in August or March. The one who likes White attends the seminar in a month having less than 30 days.