KarateDSL UI Testing - Friendly Locators not working

Following the other question that I raised recently, could you guys help spot what is wrong with the way how I wrote the "below" friendly locator? Thank you in advance!

Scenario: Get UI - Download
   Given url 'https://test01/v1/doc/env/
   And headers headers1
   When method get
   Then status 200
   * def env = response.url

   Given driver env
   And click('{button}Proceed')
   And click('{span}Start')
   And click('{span}Required - GSA)
   And click('{span}Required - GSB')
   And click('{span}Required - GSC')
   And click('{span}Required - GSD')
   And click('{span}Required - GSE')
   And click('{span}Required - GSF')
   And click('{span}Required - GSG')
   And click('{span}Required - GSH')
   * below('{}Required - GSH').input('karate dsl')

I have a textarea that I would like values to be entered, but the friendly locator "below" is not working for me.

javascript evaluation failed: below('{}Required - GSH').input('karate dsl'), unable to find: {}Required - GSH, BELOW, INPUT