Which sequence is correct in the life cycle of alternation of generations?

The correct sequence in the life cycle of alternation of generations is in the form of:

{Gy - G - Z - Sy - S}

where,

Gy = gametophyte

G = Gametes

Z = Zygote

Sy = Sporophyte

S = Spores

Therefore,

gametophyte → gametes → zygote → sporophyte → spores