1fun String?.contemplateExistence() = when {
2    this == null -> "What exists in nothing?"
3    isEmpty() -> "Is empty truly empty?"
4    else -> "Form is not different from emptiness"
5}
6
7fun main() {
8    val void: String? = null
9    val emptiness = ""
10    val form = "being"
11
12    println(void.contemplateExistence())
13    println(emptiness.contemplateExistence())
14    println(form.contemplateExistence())
15}