Grammar Point
A Keyphrase should be a short phrase that brings to mind and helps to remember the information on this frame.
indicates sentence subject (occasionally object)
Subject Marker
The particle
Noun +
Used with nouns to indicate that the noun is the one performing the action or exists in the described state.
雨
Rain is falling.
猫
The cat is here.
Note
While は is used to mark the topic of a sentence (what the sentence is about),