These examples contain fragments of words with selected syllables or morphemes marked, representing partial morphological units that appear within larger words across diverse technical and non-technical contexts (such as "libuv" from libraries, "NSU" from code, "edu" from place names, medical terms, and legal documents). The pattern reflects mid-word substrings that don't consistently correspond to meaningful linguistic boundaries, suggesting the selection marks text segments that may be important for tokenization, morphological analysis, or language model behavior at the subword level.
