The messages are localized strings.
Examples:
"No_bus_money"
"Enter_bus"
"Tour_help"
"LETTERS_HELP2"
"Dummy"
**The bool appears to always be false (if it even is a bool, as it's represented by a zero)**
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p1 doesn't seem to make a difference, regardless of the state it's in.
picture of where on the screen this is displayed?