Q post https://8kun.top/qresearch/res/8839099.html#8839415 shows pic related and has been attributed as One if by land, Two if by Sea.
It seems a stretch to me. Alternately, two lights out. Twin Towers, WTC. Recall two lights have been lit to represent the twin towers and being out in Q's post can mean the towers being gone, thus a link back to what really happened then.