a i u e o (アイウエオ)
This character looks like an axe. Remember the "a" in "axe".
This character resembles an artist's easel. It makes a sound like "ea".
Imagine a person bending over to pick up something heavy. The point at the top of the character is their head and the line pointing down on the left side is their arm. They grunt "ooo".
Imagine a cap that goes over the end of a pipe. This character makes a sound like "e", similar to the start of "end".
A person is standing up with their arms outstretched. There's an odor coming diagonally down from their armpit. This character makes a sound like the first "o" in "odor".
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