OK, the man holding the photograph has no brothers or sisters. He is the only family member from his parents. He says, indicating the man in the photograph, that the father of the of said man, (the man in the photo) is his father's son. The man holding the photo is the only offspring, thus, that makes him the father of the man in the photo. His son. Best thing to do is hold a picture of someone, anyone, and repeat what the man holding the photo says. Easy if your brain cells are like mine, double jointed.
Bumble bee.
Recommendations please, for a stopover on the way to Loch Tay
To think that London, or anywhere else for that matter, does not belong to any one demographic