Choose an appropriate word to replace the phrase "in other words" in the following sentence.
In other words, it was a difficult decision.
Namely, it was a difficult decision.
Complete the following task based on the instruction and optional input provided.### Instruction:
Choose an appropriate word to replace the phrase "in other words" in the following sentence.

### Input:
In other words, it was a difficult decision.

### Output:
Namely, it was a difficult decision.