が Particle (Neutral-Descriptive) with Non-living things


I heard that when a non-living object does an action (verbs), it always uses
the「が」particle, and when I searched for examples, it seems correct,
since「は」always seems to be used as contrastive. However, after I learned about
the Exhaustive and Neutral「が」, I don't know why the Neutral one is used here
if it's not the Exhaustive:

車が壊れた。 タイヤがパンクした。

I also learned that intransitive verbs always use「が」(Or contrastive は) as
well, so, how is it related to neutral「が」?




The use of が as a subject-marker is not limited to non-living entities. When a
person performs an action, they are also marked with が. It can be transitive
or intransitive. For example:

田中さん[ _subject_ ] **が** 来ました。Mr Tanaka arrived. (intransitive)

田中さん[ _subject_ ] **が** ピザを食べました。Mr Tanaka ate pizza. (transitive).

The distinction between using は (topic marker) or が (subject marker) has been
discussed at length on the site.

