Equal items aren't properly handled

[GerritPlehn]

When two items are being selected as equal in a prompt, the program still asks unnecessary questions afterwards.
In the case of 669580c with the options ['Pizza', 'Pasta', 'Kebab'] the user gets asked which of ['Pizza', 'Pasta'] is better in prompt #1.

If the user answers Equal, prompt #2 is for ['Pasta', 'Kebab'].

Regardless of the answer, prompt #3 for ['Kebab','Pizza'] is shown, which can lead to conflicting results.

As an example, assume we picked Pasta > Kebab in prompt #2

a = score(Pizza)
b = score(Pasta)
c = score(Kebab)

Prompt #1
a = b

Prompt #2
b > c

=> a > c

At this point we know that a MUST be better than c, however prompt #3 gives us the option to override this.