• count_words(sentence): returns a dictionary with all the words in sentence in lower case as keys, and the value of each key is the number of times that word appears in a sentence. You can assume that sentences will only have letters spaces commas and dots

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Implement the following funciton:

*Code should be in python

- **count_words(sentence)**: Returns a dictionary with all the words in the sentence in lowercase as keys, and the value of each key is the number of times that word appears in a sentence. You can assume that sentences will only have letters, spaces, commas, and dots.
Transcribed Image Text:- **count_words(sentence)**: Returns a dictionary with all the words in the sentence in lowercase as keys, and the value of each key is the number of times that word appears in a sentence. You can assume that sentences will only have letters, spaces, commas, and dots.
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