Execution example:

```shell
load --table Memos
[
{"content": "I am a boy."},
{"content": "This is an apple."},
{"content": "Groonga is a full text search engine."},
{"content": "This is an orange."},
{"content": "This is a banana."},
{"content": "This is a tomato."},
{"content": "This is a carrot."},
{"content": "This is a cucumber."},
{"content": "This is a pepper."},
{"content": "This is a potato."},
{"content": "This is an onion."}
]
# [[0,1337566253.89858,0.000355720520019531],11]
```
