python urgent question

I'm trying to write a Python code that counts words in a paragraph

1) Remove punctuation marks using replace() function in String Change 2) upper case letters to lower case letters using lower() function in String(Slide 49 in FC 2-1). 3) Split the paragraphs into words by using split() function in String. 4) Use list and dictionary to count words in the following paragraph

Deep learning (also known as deep structured learning or hierarchical learning) is part of a broader family of machine learning methods based on learning data representations, as opposed to task-specific algorithms. Learning can be supervised, partially supervised or unsupervised. Some representations are loosely based on interpretation of information processing and communication patterns in a biological nervous system, such as neural coding that attempts to define a relationship between various stimuli and associated neuronal responses in the brain. Research attempts to create efficient systems to learn these representations from large-scale, unlabeled data sets. Deep learning architectures such as deep neural networks, deep belief networks and recurrent neural networks have been applied to fields including computer vision, speech recognition, natural language processing, audio recognition, social network filtering, machine translation and bioinformatics where they produced results comparable to and in some cases superior to human experts.