# Store and reuse questions.

A [question file](/functions/question-file/) is a small recipe. `decide` holds the question. `true` and `false` say what yes and no mean. `threshold` sets the band 0.2:0.8. An answer of 0.8 or more is yes, and an answer under 0.2 is no. `on` picks the title and the album from each record. The request sends only those two fields.

Here a band plays only songs the Beatles wrote. The file asks whether a Beatle wrote a song. `decide @original.json` runs the recipe on one song.

The numbers come from [the bench's songwriter list](https://github.com/botassembly/beatles-bench/blob/main/data/songs.tsv).

*original.json, the question file*

```
{
  "decide": "Did a Beatle write this song?",
  "true": "John, Paul, George, or Ringo wrote it.",
  "false": "Someone else wrote it. It is a cover.",
  "threshold": "0.2:0.8",
  "on": ["/title", "/album"]
}
```

## Run it

*`decide` prints `true` for Something and exits 0.*

```
printf '%s\n' '{"title":"Something","album":"Abbey Road"}' |
  thinkthen decide @original.json
code=$?
echo "exit $code"
```

*Output*

```
true
exit 0
```

*exit 0*

## The lesson

George Harrison wrote Something. The answer is right. The exit code carries the answer too: 0 for yes, 1 for no, and 3 for not sure. The next page puts that code to work in a script.

Write the question once in a file, and every run asks it the same way.

On GitHub: [github.com/botassembly/beatles-bench](https://github.com/botassembly/beatles-bench)