def record_edf_annotations_to_sec_items(raw_edf_annotations):
    """
    rec = hdf['record-0']
    annotation_items = record_edf_annotations_to_sec_items(rec['edf_annotations'])
    # returns (text, <start time (sec)>) pairs
    """
    byte_texts = raw_edf_annotations["texts"]  # still byte encoded
    antexts = [s.decode("utf-8") for s in byte_texts[:]]

    starts100ns_arr = raw_edf_annotations["starts_100ns"][:]
    starts_sec_arr = starts100ns_arr / 10000000  #  (10**7) * 100ns = 1 second
    items = zip(antexts, starts_sec_arr)
    return items