Thus, there is a statistical enrichment of chromophores perpendicular to polarized light (orientational hole burning). Educational reforms in 1982 emphasized the orientational, selecting and referring function. Note that prepositions and adverbs can have a literal meaning that is spatial or orientational. More importantly, the orientational information is lost. The hexatic phase is characterized by six segments, which reflect the quasi-long ranged orientational order. This leads to the extensions discussed below, namely Huntley's directed dimensions and Siano's orientational analysis. The tumour deprives Frank from memory, orientational ability and even control of basic body functions. By extension, other quenched states are called spin glass, orientational glass. This so-called hexatic phase still has an orientational stiffness. The orientational numbers are arranged sequentially within the street or square. The hexatic phase shows short ranged translational order and quasi-long ranged orientational order. The (closed packed) crystalline phase is characterized by six-fold symmetry based on the orientational order. This rules out certain orientational combinations when two neighbor molecules are considered. Note that the orientational symbols form a group (the Klein four-group or "Viergruppe").