Given the document below, you have to determine if "Yes" or "No", the summary is factually consistent with the document.

Document:
PhD D: Yeah . Uh , yeah . So there is this . And maybe we well we find some people so that uh , agree to maybe work with us , and they have implementation of VTS techniques so it 's um , Vector Taylor Series that are used to mmm , uh f to model the transformation between clean cepstra and noisy cepstra . So . Well , if you take the standard model of channel plus noise , uh , it 's it 's a nonlinear eh uh , transformation in the cepstral domain . Professor NAME_1: Mm - hmm . Yes . PhD D: And uh , there is a way to approximate this using uh , first - order or second - order Taylor Series and it can be used for uh , getting rid of the noise and the channel effect . Professor NAME_1: Who is doing this ? PhD D: Uh w working in the cepstral domain ? So there is one guy in Grenada , PhD B: Yeah , in Grenada one

Summary:
1. The team mentioned that one of their friends, NAME_2, is currently working in Grenada on implementing VTS techniques for modeling the transformation between clean and noisy cepstra.
2. Professor NAME_1 expressed that he did not know him.

Is the summary factually consistent with the document? (Yes/No)
Start your answer explicitly with "Yes" or "No", and if you answer no, explain which sentence is inconsistent and why.
 Make sure your entire response is wrapped in JSON format.
user