Consider the question. If "Archaeologists are on the ground digging for something." does that mean that "Someone is digging in the ground at a new dig sight."?
Options:
- yes
- it is not possible to tell
- no
If the answer is 'it is not possible to tell'; explain the reasoning:
Just because the archaeologists are on the ground digging for something doesn't mean it is a new dig sight. It might be the same site they've been digging in for the past 3 weeks.