Removed both nodes. Why both? Building 122/126 already includes Winston prep. details -> making separate node(s) redundant. As Winston occupies whole building, this seems like natural approach. Nonetheless, schema where school data is on own node and building data as area, would be just as valid. Just remember then -> don't mix building details and school details.

Another note: Winston prep. is now _not_ tagged with amenity=school. Why? As I understood from OSM Wiki and discussions, the recommend way for schools that offer 'extra' (after-school) education, is to tag it with something other than amenity=school. Like in this case office=educational_institution.