A sign at a railroad crossing might say "You are allowed to pass 'by license', which can be taken away at any time."
These are questions that the above text answers:
1. What is the potential consequence of violating real estate regulations?
2. What is the risk associated with passing a railroad crossing?
3. What does the sign at a railroad crossing indicate about passing?
4. How can a real estate license be revoked?
5. What is the significance of having a license when passing a railroad crossing?
6. What is the potential consequence of losing a real estate license?
7. What is the warning given at a railroad crossing?
8. What is the implication of the phrase "by license" at a railroad crossing?