 METAXYLYLENE
 8 8
 0.
 1. 0.
 0. 1. 0.
 0. 0. 1. 0.
 0. 0. 0. 1. 0.
 0. 0. 0. 1. 0. 0.
 0. 0. 0. 0. 0. 1. 0.
 0. 1. 0. 0. 0. 0. 1. 0.
 