More than one of something on the same site: e.g. two schools sharing the same grounds. If the schools have separate buildings, they can be mapped as the buildings and the ground can be tagged with landuse=education. ==If multiple schools are located in the same building, both should be mapped as amenity=school (typically nodes)==.
Apa kes kalau kedai teres tiga tingkat macam kat Taman Universiti ni? Typically nodes, jadi lagi baik buat nodes. Map terraced buildings, lepastu map POIs. Betul kan?
bab terraced buildings ni dulu aku pernah cadangkan kita jangan buat terrace kalau boleh, biarkan satu building non-residential yg besar dan lepas tu kita letak nodes utk setiap alamat (ataupun address interpolation kalau rumah teres). Bukannya apa, nak ringankan map dalam phone sambil kekalkan fungsi keseluruhan. Tapi takdak sambutan gayanya.
Kadang-kadang, contohlah… 99 Speedmart tu ambil sampai dua tiga lot kedai tapi tingkat bawah semuanya. Macam macam. Kalau tak sure, buat je satu blok shoplot besar.