Generate a new sentence based on the given sentence, so that the output sentence conveys the same meaning as the input sentence, but with different words.
Stan has a pet fish.
Stan is the owner of an aquatic animal as a companion.
Complete the following task based on the instruction and optional input provided.### Instruction:
Generate a new sentence based on the given sentence, so that the output sentence conveys the same meaning as the input sentence, but with different words.

### Input:
Stan has a pet fish.

### Output:
Stan is the owner of an aquatic animal as a companion.