I was looking at the news and came across Alison Harcourt, who is an Australian grandmother still working as a tutor and mathematician from young ([here](http://www.abc.net.au/news/2018-10-08/meet-alison-harcourt-the-grandmother-of-australian-mathematics/10350170)).

I decided to make an [anagram](https://en.wikipedia.org/wiki/Anagram) related to it, and after doing so, I am not sure it makes sense. Here it is:

> 
> *The beautiful, ground-breaking Australian grandmother, Alison Harcourt. Says, "I've always loved numbers." Met a smile.* =  *Mathematics (bounds, binomials, areas, values and formulae) greatly intrigue her. She's very old, but working. A natural!*
> 
> 
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Yes, I am aware that the first phrase changes from present tense to past tense, but am not concerned about that. What I *am* concerned about is this particular sentence:

> 
> *Mathematics (bounds, binomials, areas, values and formulae) greatly intrigue her.*
> 
> 
> 

* Ignoring the brackets, we get

> 
> *Mathematics greatly intrigue her.*
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> 
> 

Which doesn't make sense. The word "intrigue" should have a plural.
* Not ignoring the brackets, however, the sentence sounds okay.

**So... is this sentence grammatically correct, or is it not?**