If you are not careful, some katakana characters may become indistinguishable from another katakana character.

	Katakana ア and マ may become indistinguishable if ... ア is written like this: マ　is written like this:
	Katakana ヤ and マ may become indistinguishable if ... ヤ is written like this:
	Katakana ク and ケ may become indistinguishable if ... ク is written like this: ケ is written like this:
	Katakana ク and ワ may become indistinguishable if ... ク is written like this: ワ is written like this:
	Katakana ナ and メ may become indistinguishable if ... ナ is written like this: メ is written like this:
	Katakana コ and ユ may become indistinguishable if ... コ is written like this: ユ is written like this:
	Katakana ツ may シ become indistinguishable if ... ツ is written like this: or シ is written like this: or
	Katakana ソ may become ン or the other way around if ... the second stroke of ソ is written upward () OR the second stroke of ン is written downward ().
	Katakana シ may become ン or the other way around if ... one of the first two short strokes of シ is missing. OR there is an extra short stroke in ン.
	Katakana テ and ラ become indistinguishable if ... テ is written like this:
	Katakana チ and テbecome indistinguishable if ... チ is written like this: or テ is written like this: or
	Katakana カ may look like hiragana か, or the other way around if ... カ is written with an extra stroke: か is missing the last stroke:
	Katakana セ may look like hiragana せ, or the other way around if there is an extra short vertical stroke in katakana セ OR if the short vertical stroke is missing in hiragana せ.
	Katakana ヤ may look like hiragana や, or the other way around if there is an extra short stroke in katakana ヤ OR if the short stroke is missing in hiragana や.
	Katakana リ may look like hiragana り or the other way around if the first stroke of katakana リ is written with a hook and/or is connected with the second (り) OR if the first stroke of hiragana り is written in a straight vertical line without a hook.
	Katakana ホ may look like kanji 木 (to be introduced later), or the other way around if the last two short strokes of ホ touch the cross part (十 ) OR if the last two strokes of 木 are separated from the cross part (十 ).
	Katakana セ may look like kanji 七 (to be introduced later), or the other way around if the first stroke of セ does not have a hook OR if the first stroke of 七 has a hook.