# 12.1 Introduction—Natural Language Communication Examples

Examples of natural language communications
Conversations between people
Communicating with a hearing-impaired friend via sign language
Learning a foreign language to prepare for travel abroad
Using a smartphone to read a menu in another language
Reading/writing text messages
A blind colleague reading braille or listening to a screen reader describe what’s on a computer screen
Receiving a client email in Spanish, translating it and responding in English knowing that your client can easily translate your email back to Spanish
and much more.

# 12.1 Introduction (cont.)¶

- NLP is performed on text collections (corpora, plural of corpus):
  - Tweets
  - Facebook posts
  - Conversations
  - Movie reviews
  - Documents
  - Books
  - News
  - And more
- Nuances of meaning make natural language understanding difficult
  - Text’s meaning can be influenced by context and reader’s “world view”

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