I want to know the answer to the following question:
What is the term for when dialects A and B are mutually intelligible, dialect B and C are mutually intelligible, but dialects A and C are not mutually intelligible?
All the background I'm provided with is that "However, this definition becomes problematic in the case of dialect continua, in which it may be the case that dialect B is mutually intelligible with both dialect A and dialect C but dialects A and C are not mutually intelligible with each other.". Is that enough to answer the question?
Answer: yes