Editing Null-subject language (section)

===Japanese===
[[Japanese language|Japanese]] and several other null-subject languages are [[topic-prominent language]]s; some of these languages require an expressed [[topic (linguistics)|topic]] in order for sentences to make sense. In Japanese, for example, it is possible to start a sentence with a topic marked by the particle ''は''(read as ''wa'', written as ''ha'') and in subsequent sentences leave the topic unstated, as it is understood to remain the same, until another one is either explicitly or implicitly introduced. For example, in the second sentence below, the subject ("we") is not expressed again but left implicit:

{{fs interlinear|lang=ja|indent=3
| 私達 は 買い物 を した。 後 で ご飯 を 食べた。
| Watashitachi wa kaimono o shita. Ato de gohan o tabeta.
| We TOP shopping OBJ did. After COMPL dinner OBJ ate.
| "We went shopping. Afterwards, we ate dinner."}}

In other cases, the topic can be changed without being explicitly stated, as in the following example, where the topic changes implicitly from "today" to "I".

{{fs interlinear|lang=ja|indent=3
| 今日 は ゲーム の 発売日 なんだ けど、 買おうか どうか 迷っている。
| Kyō wa gēmu no hatsubaibi {na n da} kedo, {kaō ka} {dō ka} {mayotte iru}.
| Today TOP game GEN {release date} is but, {whether to buy} {or not} confused.
| "The game comes out today, but (I) can't decide whether or not to buy (it)."}}

It is also common for Japanese to omit things which are obvious in context. If the above line were part of a conversation about considering purchasing the game, it could be further shortened to:

{{fs interlinear|lang=ja|indent=3
| 発売日 だけど、 迷っている。
| Hatsubaibi dakedo, {mayotte iru}.
| {Release day} but {not sure}.
| "(It's the game's) release day, but (I) can't decide (whether or not to buy it)."}}