About the ordinal follower list
SDL Trados Studio uses a default source language ordinal follower list when segmenting text. An ordinal follower, or ordinal noun, is a word that is typically found following a number. The ordinal nouns list allows Studio to read past instances of the full stop that are preceded by a number and followed by an ordinal noun. This aspect of segmentation is not relevant for all languages, but it is particularly useful for the German language. A dot is not interpreted as a segment boundary marker if it is preceded by a number and followed by an ordinal noun.
You can create your own list of ordinal followers to use in place of the default lists in Studio.