Task: Sentiment Analysis
Input (English): Useful . This is essentially a grammar, but it leaves out the simple basics and continues where a school grammar would stop. It assumes that you master the hiragana and katagana alphabets, but for the kanji there is almost always a pronounciation guide. It takes time to read, as the text is concentrated, but it's not difficult, and one gladly reads one chapter after the other. Generally it's both interesting and useful
Output (English): POS