Unexpected Token True?!?

I tried looking it up like five times, but Google always takes 'unexpected token' and finds things about 'unexpected token illegal,' which is not my problem.
Let's say I have a passage that says:

(set: $variable to false)(set: $othervariable to false)(set: $anothervariable to true)``Blah blah blah story stuff.``

Then I click Play because I need to check if something works...
Why would the "Unexpected Token True" error show up? I'm trying to solve a different problem and it's incredibly irritating to keep coming across this. I can't think of anything that I could have messed up.