denotation-I see a little boy wearing a scruffy racing car t-shirt next to a crusty wall looking pretty sad. it is an advertisement for water aid. That fits in the genre as he is not that rich
connotations-People where he lives probable have pretty bad water and not that many toilets and live in poverty
analysis-Water can be used for the purpose of living or for doing normal things in other places. By drinking the water you can feel safe and healthy.

