The Chosen Ones

Hey guys i maybe know the answer on channel 4.. but i dont know what to do with the answer 

Lemme give you guys what i think...

so the chicken head said this. "There are 6 thing and 7 number. one, two, three, one, two, three. What is the seventh one ?"

so im focus on the the first 2 sentence. in sentence 2 there is 6 number right ? but in the sentence 1 it say 6 thing. so i guess number meaning has been switched with "thing", because in the sentence 1 there is 7 word that prefer to "7 number". in the end first sentence mean 7 number and sentence 2 mean 6 thing.

so lastly if we think's this way. the seventh number in this chicken head description is the word "number".

but i dont know the next tho...

Spoiler (hover to show)

Easter Egg of chapter 4 is 6 box of Phodom.
Click on Phodom first to start this EE.
After that, click on 1st box -> 2nd box -> 3rd box -> 1st box -> 2nd box -> 3rd box -> 6th box -> See amazing picture
Source: matias371