values key "text"

[Julia132]

Hello!

Thank you very much for your dataset.

When working with it, we had a question, what do mean the values ​​%math%, %NA%, %SC%, etc. at the "text" key

Thanks

[aniketntnu]

– %math%: it includes math expressions that cannot be represented by ASCII
printable characters. For example, ∞ and P.
– %SC%: it considered as illegible scribbles.
– %NA%: it does not contain characters or math symbols. PLS check https://assets.amazon.science/38/fe/4c3105fb43129bf59cc0aadb5d78/gnhk-a-dataset-for-english-handwriting-in-the-wild.pdf