(
  $.a.b.c;

  /* Example json input */
  $jsonInput := {
    "firstName": "JSONata",
    "lastName": "User",
    "age": 25,
    "skills": ["programming", "cooking"],
    "over 18": true,
    "coordinates": { "latitude": 51.509865, "longitude": -0.118092 }
  };
  
  /* Example function definition */
  $getGreeting := function($firstName, $lastName) {
    "Hello, " & $firstName & " " & $lastName
  };

  $isAdult := $jsonInput.`over 18`;
  
  /* Example json transformation */
  $jsonInput.{
    "fullName": $join([firstName, lastName], " "),
    "greeting": $getGreeting(firstName, lastName),
    "skills": $append(skills, "jsonata"),
    "isAdult": $isAdult
  }

  $spreadOp = [1..5];
  $sortOperator := Account.Order^(>Price, <Quantity);
  $descendants := **.Postcode;
  $math:= 10 / 5 * 2 + 4 - 2 % 2;
  $conditions := 20 > 10 and 10 > 20 ? 20 = 20 or 20 != 10 : 10 in [1,10,20];
  $chainOperator := " trim " ~> $trim();
  $sum := +10 + -5 - +3 + $x / $y;
  $multiplyVars := $a*$b * $c;
  $wildcard := $.wild.*.card;
)