Similarity scores for sentences with
       title in descending order

def _title_similarity_score(full_text, title):
    """Similarity scores for sentences with
       title in descending order"""

    sentences = sentence_tokenizer(full_text)
    norm = _normalize([title]+sentences)
    similarity_matrix = pairwise_kernels(norm, metric='cosine')
    return sorted(zip(
                     similarity_matrix[0,1:],
                     range(len(similarity_matrix)),
                     sentences
                     ),
                 key = lambda tup: tup[0],
                 reverse=True
                 )