Excluding SPACs, IPOs & Chinese ADRs from scanner


SPACs create more noise than they're worth for my volume scans and I'd like to keep them from showing in the results. Does anyone have any ideas about how I could exclude SPACs from my scans (without limiting price to less than $9 which excludes mosts SPACs based on the usual 10 price at IPO)? The best I can think of would be if I could exclude any stock with "acquisition" in its name, but I can't find any study that has to do with the stock's name. Any other suggestions are appreciated.
1. Google Chinese ADRs
2. Copy Tickers into Excel
3. Eliminate all columns except the ticker symbol
4. Import symbols into Watch List
Here is what the result should look like (shared link of a list of Chinese ADRs): http://tos.mx/UFP9Fw4
Easiest way to load shared links
5. Use the Exclude function in scanner

I use a Stock Hacker scan and my results are loaded with ADRs that I won't ever trade, such as China ADRs.
I use the Standard filters together at the top such as:
Scan in "All Optionable"
Intersect with "All listed Stocks"
Exclude "Scheduled Earnings Next 5 Days"
There is no exclusion filter that I can find for ADRs.

I have found the filter "None of the Following".
Under "None of the Following", I tried "Study" then "Custom" and the thinkscript Editor pops open.

I have tried to create a simple SYMBOL list here, which I will maintain.
But I can't find the syntax for SYMBOL which will work, which will pass the compiler tests.
Symbol is a reserved word, but It does not seem to be useable to produce a result to TRUE in any logic, and therefore an Exclusion.

I have tried to use the function GetSymbol ();
If GetSymbol () == "BABA" then TRUE;

Has anyone created Exclusion code in "NONE of the Following" in a Stock Hacker scan?

Thanks for any help

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