[Vocabulary] Signature?

[Prediction]

Could you please tell me what this sentence means?

Indication for all letters are signature.

 

[Barb_D]

It doesn't mean anything to me and it's not grammatical. What is the context?

 

[emsr2d2]

Prediction, you seem to be finding a lot of sentences which don't make sense or aren't grammatical. Where do you find the sentences that you post here?