If "Dr. nava working on some mathematical equations on a blackboard." does that mean that "Dr. nava is doing math for a research prokect."?
Options:
- yes
- it is not possible to tell
- no Now, let's be accurate as possible. Some thinking first:
Just because Dr. Nava working on some mathematical equations on a blackboard does not mean that he is doing math for a research prokect. So, the answer is it is not possible to tell.