[chaley]

This is a way to do the same example using a for loop. It might be easier to read and understand.

program:
	sample_input = 'Bus, Car, Starship, Ferry, Ferry Terminal, Alien Spacecraft';

	output = '';
	for item in sample_input:
		if  	  item == 'bus' then ni = 'Public Transport'
			elif item == 'ferry' then ni = 'Vehicle'
			elif item == 'starship' then ni = 'Vehicle'
			else ni = item
		fi;
		output = output & ',' & ni
	rof;
	output = list_remove_duplicates(output, ',')

The output is

Public Transport, Car, Vehicle, Ferry Terminal, Alien Spacecraft

You can sort the list if you want with

	output = list_sort(list_remove_duplicates(output, ','), 0, ',')

Now the output is

Alien Spacecraft, Car, Ferry Terminal, Public Transport, Vehicle