My 6 year old daughter was involved in a traffic accident this morning . An older girl ( I do n't know her , and did n't get her name but I am guessing that she was en route to a school for 8th - 10th grade ) was cycling in the wrong side of the bike path and wan not looking ahead probably because it was raining and she would be getting rain in the eyes and collided frontally with my daughter . My daughter was in the right side of the path , and neither my daughter , nor the older girl reacted to my warning shout and my daughter was knocked over backwards with her bike and the older girl on top of her .
According to the above context, answer the following question.
What may be the reason for them not listening to speaker ?


They could n't hear her .