バージョン：25.3

symbol_parentheses `()`

grouping operator in expressions (treat any expression as a factor)
- Examples:
```
  put 5 * (3 + 8) --> 55
```
used around parameters in a function call expression
- Examples:
```
  put average(2,4,6,8) --> 5
```
used (required) around the selector operator
- Examples:
```
  put (if x then y else z) into res
```
used to treat the value of any expression as an identifier
- Examples:
```
  set foo.("prop" & 1) to 7 --> sets foo's "prop1" property to 7
```
used to treat the value of any expression as an object for obtaining a property using 's and '.'
- Examples:
```
  put ("script" & 2)'s counter
```
used to apply a unit to the value of an expression when it is followed by a unit name
- Examples:
```
  set height to (a + b) inches
```
used optionally in a variety of situations
- used optionally around formal parameter declaration
- used optionally around parameter value
- used optionally around factor list
- used optionally around helper list
- used optionally around a container
used around lists or property lists instead of [ ] or
- SenseTalk is very accommodating about the brackets used for collections, allowing any of ( ), [ ], or around both lists and property lists. However, it is strongly encouraged to always use for property lists, and [ ] for lists.