In a regular triangular pyramid SABC (S is the vertex), E is the midpoint of the slant height of the face SBC. The points F, L and M respectively lie on the edges AB, AC and SC and, |AC| = 10*|AL|.

It is known that EFLM is an isosceles trapezoid and the length of its base EF is equal to √7.

Find the volume of the pyramid.