textpick text-box-name 

Reports the text in a randomly-chosen line from the named text box. Lines are delimited by carriage returns (they are logical lines, not physical lines). Textpick can pick empty lines if they’re in the middle of the text, but not if they’re at the end of the text. Carriage returns at the end of the text are not taken into account. The line reported by textpick is a long word (a character string including spaces). Use parse to turn a long word into a list.

Example:

If you have the following text box:

     My best friend
  Plato’s cat is very
  friendly.
  Lucy

show textpick "text1
Plato’s cat is very friendly.

Textpick reports one of the "lines."