Read the following sentence and generate an output revised sentence to reduce the complexity and/or improve readability.
John, who was a scientist known for his achievements in the field of quantum mechanics and artificial intelligence, passed away suddenly.
John, a renowned scientist in quantum mechanics and AI, passed away suddenly.
Complete the following task based on the instruction and optional input provided.### Instruction:
Read the following sentence and generate an output revised sentence to reduce the complexity and/or improve readability.

### Input:
John, who was a scientist known for his achievements in the field of quantum mechanics and artificial intelligence, passed away suddenly.

### Output:
John, a renowned scientist in quantum mechanics and AI, passed away suddenly.