Q.22 What are the input and output of an NLP system?1. Speech and noise2. Speech and Written Text3. Noise and value4. Noise and Written Text

The input and output of a Natural Language Processing (NLP) system are typically Speech and Written Text. So, the correct answer is option 2.

Here's a step-by-step explanation:

Step 1: Understand the question - The question is asking about the input and output of an NLP system.

Step 2: Know what an NLP system is - NLP stands for Natural Language Processing, which is a branch of artificial intelligence that deals with the interaction between computers and humans through natural language. The ultimate objective of NLP is to read, decipher, understand, and make sense of human language in a valuable way.

Step 3: Identify the input and output - The primary input for NLP is human language, which can be either speech or written text. The output is also in a similar form, either providing a written response or a spoken one (like Siri or Alexa).

So, the input and output of an NLP system are Speech and Written Text.