Given a sentence, identify all the named entities.
John Smith visited Boston last week.
John Smith - Person
Boston - Location/GPE (Geo-Political Entity)
Complete the following task based on the instruction and optional input provided.### Instruction:
Given a sentence, identify all the named entities.

### Input:
John Smith visited Boston last week.

### Output:
John Smith - Person
Boston - Location/GPE (Geo-Political Entity)