Event = {Game with long & short comments and variations 3.}
[start]                 -+<LONG
[1w]                    (1w) e4 (#hm=0) {I'm a long comment with an empty sub-variation sibling.}<LONG
                         |
[1w-v0-start]            +---+
                         |
[1b]                    (1b) e5 (#hm=0)
[2w]                    (2w) Nf3 (#hm=1)
                         |
[2w-v0-start]            +---+<LONG {I'm a long variation followed by an empty variation.}
[2w-v0-2w]               |  (2w) Nc3 (#hm=1)
                         |
[2w-v1-start]            +---+
                         |
[2b]                    (2b) Nc6 (#hm=2)
+---+---+---+---+---+---+---+---+
| r |   | b | q | k | b | n | r |
+---+---+---+---+---+---+---+---+
| p | p | p | p |   | p | p | p |
+---+---+---+---+---+---+---+---+
|   |   | n |   |   |   |   |   |
+---+---+---+---+---+---+---+---+
|   |   |   |   | p |   |   |   |
+---+---+---+---+---+---+---+---+
|   |   |   |   | P |   |   |   |
+---+---+---+---+---+---+---+---+
|   |   |   |   |   | N |   |   |
+---+---+---+---+---+---+---+---+
| P | P | P | P |   | P | P | P |
+---+---+---+---+---+---+---+---+
| R | N | B | Q | K | B |   | R |
+---+---+---+---+---+---+---+---+
w KQkq -
{Line}{4 plies}