x1=k1=s2 is a hall / corridor / long passageway at x2=k2 accessing / connecting x3=k3 with surrounding walls / barriers / separators / covers / borders x4=s1=b1 in direction(s) / dimension(s) / plane x5=s3, with interior x6=b2 and exterior x7=b3 in / of structure / environment x8=b4.
See also bimrurklaji.