A crowd of people gathers around an old stone wall .
They are tourists
A crowd of people gathers around an old stone wall.
They are tourists
It's not possible to know who "they" is referring to (the crowd or the two children) and it's not clear if the children or crowd of people are tourists.
It 's not possible to know who `` they '' is referring to ( the crowd or the two children ) and it 's not clear if the children or crowd of people are tourists .