def load_content(sentence_file):
    """Load input file with sentences to build LSH.

    Args:
        sentence_file (str): Path to input with txt file with sentences to Build LSH.

    Returns:
        dict: Dict with strings and version of string in lower case and without comma.

    """
    sentences = {}
    with open(sentence_file) as content:
        for line in content:
            line = line.strip()
            line_clean = line.replace(",", "")
            line_clean = line_clean.lower()
            sentences[line_clean] = line

    return sentences