Which of the following is an NLP construct? Question 5 options: System UIMA Entity Facial recognition

The correct answer is "Entity".

Here's why:

1. System: This is a general term that can refer to any set of components that work together. It's not specific to Natural Language Processing (NLP).

2. UIMA: This stands for Unstructured Information Management applications. It's a framework for analyzing unstructured data, which can be used in NLP, but it's not a construct within NLP itself.

3. Entity: In the context of NLP, an entity refers to the concept of Entity Recognition. This is a key aspect of NLP that involves identifying important elements in text, such as names of people, places, organizations, dates, etc. So, "Entity" is an NLP construct.

4. Facial recognition: This is a construct within the field of computer vision, not NLP. It involves identifying or verifying a person's identity using their face.