Question 1: Short answer
hardAI-checkedTokenizationBPE is trained on a corpus with these word counts:
| word | hat | hats | that | chat | chats | at |
|---|---|---|---|---|---|---|
| count | 5 | 2 | 4 | 3 | 2 | 3 |
Split into characters, the corpus is 67 tokens long. The first three merges are a t → at,
h at → hat and c hat → chat. How many tokens long is the corpus after these three
merges (counting every occurrence of every word)?