Sentence Break - LF

LF is a Sentence Break value that represents the line feed character (U+000A), commonly used as a hard line break in text files and terminal output. In sentence segmentation, LF acts as a mandatory boundary, meaning it always terminates a sentence, regardless of surrounding punctuation or context. This is because a line feed typically marks the end of a logical text unit, such as a paragraph or a distinct line in plain text. When processing text for natural language tasks, LF prevents the continuation of a sentence across separate lines, ensuring that each line is treated as its own complete sentence. This behavior is especially important for formats like Unix-style newline endings, where LF alone separates lines without a carriage return.