A worker is working on a tall part of a brick building.
Someone is working.
If "A worker is working on a tall part of a brick building.", does this mean that "Someone is working."?

Options: 

 - yes

 - it is not possible to tell

 - no
yes
If "A worker is working on a tall part of a brick building.", does this mean that "Someone is working."?

Options: 

 - yes

 - it is not possible to tell

 - no
user
yes
assistant