As we connect to different systems using a range of different languages, we can interpret several things as a true. Generally speaking holidaymaker will use a standard true/false JSON boolean, however we also read a lower case string and checked if they are "1", "true", "yes", or "on" to then create the positive boolean. Unless explicitly noted, all booleans are defaulted as false if the node doesn't exist.
{
"optionOne": true,
"optionTwo": false,
"allTheseAreValidTrues" : [
1, "1", true, "true", "on", "yes"
]
}