What is the main objective of 'Named Entity Recognition' (NER)?

1. ক
   Classifying text segments into predefined categories like person, organization, or location
   
2. খ
   Identifying the grammatical role of every word in a sentence
   
3. গ
   Translating text from one language to another
   
4. ঘ
   Summarizing long documents into short paragraphs