String replacement
/* Replace every instance of ',' with '~' */
concatenation "~" of substrings separated by "," of value of "milk,eggs,ky jelly,viagra,atomic bombs"
/* Note on below example: "active action" can only be evaluated as relevance inside an action script, not as relevance of a task or action. */
concatenation "~" of substrings separated by "," of value of header "Subject" of active action