U, V, W, J, K and L are sitting in a row facing north but not necessarily in the same order. The distance between any two adjacent persons is among 3, 4, 5, 6 and 7 meters and no two adjacent persons share the same distance.
Distance between W and U is 7 meters but W and U are not adjacent to each other. U and J are sitting adjacent to each other. K and V are not sitting at any extreme end of the line but W is sitting one of the extreme ends of the row. The distance between U and J is less than distance between J and K but distance between U and J is greater than the distance between K and L. The distance between V and K is not greater than 16 meters and not less than 14 meters. V is not sitting immediate left of W.
How many persons sit between W and L ?