It looks like a "sine" graph for me.
https://drive.google.com/file/d/1Kxt06APavJ1UmY1dpfuCgw6q9J6eaKYC/view?usp=sharing
That looks OK, but it's "as well", not "is well".
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Regarding the words with red lines around them. The third caused some shock and confusion. Do you know what it means in British English?