What does fibonacci C12 ... mean?

[3for]

Does it mean that:

• 1. we can prove "the verification of a STARK proof" with a SNARK proof? Then how can I get the specific SNARK proof JSON file?
• 2. OR we can prove "the verification fo a SNARK proof" with a STARK proof?

Does our "recursive STARK" mean:
"stark_proof_1" -> "snark_proof_1" -> "with input_2 then get stark_proof_2" -> "snark_proof_2" -> ....
OR just:
"stark_proof_1" -> "with input_2 then get stark_proof_2" -> ....