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I would tag it as building=construction.  These kinds of buildings are
seen commonly all over Africa (we see them in other countries as well
but everywhere in Africa I have mapped has had similar features to
these).  They are buildings which are not yet finished, the walls are
up but no roof on it so you are looking down into the rooms.

The shadows are the key things to look at.  You always want to start
by looking for some trees or something nearby and then looking at the
direction the shadows go and then look at the feature you are
wondering about.  In this example the shadows go almost directly south
(a bit to the west as well) and you can see that in addition to the
north/south lines on the edges there are 3 walls running east/west
which cast shadows.  The length of the shadows gives the height of the
walls.  All three are the same height and are around the same height
as a typical tree and comparable to the other buildings in the area.

- -AndrewBuck


On 02/02/2016 05:23 PM, althio wrote:
> I would guess: a building under construction, with no roof yet.
> 
> It could be something slightly different, like a collapsed roof, or
> a specific kind of building intended with no roof.
> 
> Anyway, building=yes would suffice for me, except for very
> specific mapping tasks.
> 
> - althio

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