Task: NL2SQL (source dataset: Spider)

Natural language to SQL, also known as NL2SQL, is the problem of generating a SQL query that can be executed on a input table, for a given natural language question.

You will be given an input table called "table" in the markdown format, as well as a question. Your task is to generate an SQL query that can be executed on the input table to answer the question.

Please ensure that the generated SQL only return relevant columns being specifically asked in the question (e.g., in SQL please don't return more than one columns in SELECT if only one column is needed to answer the given question, and similarly please refrain from using SELECT * unless the entire row is needed to answer the question).
 
When generating SQL code, please use the SQLite syntax to ensure that your SQL is executable on SQLite3. Use only columns that are present in the table, always use quotes around your column and table names (some column names have punctuation or special characters), and refer to the columns using the column-names exactly as they appear in the table, do not add or remove punctuation (underscore, slash, etc.)

No explanation, return the code only with the following markdown codeblock format : ```sql<SQL CODE>```. For example, ```sql
SELECT * FROM "table"
``` is a valid format.

Database:
tv_shows

Tables:

Table: city_channel
|   ID | City                       | Station_name   |   Owned_Since | Affiliation    |
|-----:|:---------------------------|:---------------|--------------:|:---------------|
|    1 | Phoenix                    | KNXV-TV        |          1985 | ABC            |
|    2 | Bakersfield, California    | KERO-TV        |          2011 | ABC            |
|    3 | Bakersfield, California    | KZKC-LP        |          2011 | Azteca América |
|    4 | San Diego                  | KGTV           |          2011 | ABC            |
|    5 | San Diego                  | KZSD-LP        |          2011 | Azteca América |
|    6 | Colorado Springs, Colorado | KZKS-LP        |          2011 | Azteca América |
|    7 | Denver                     | KMGH-TV        |          2011 | ABC            |
|    8 | Denver                     | KZCO-LP        |          2011 | Azteca América |
|    9 | Fort Collins, Colorado     | KZFC-LP        |          2011 | Azteca América |
|   10 | Tampa – St. Petersburg     | WFTS-TV        |          1986 | ABC            |


Table: radio
|   Radio_ID | Transmitter    |   Radio_MHz | 2FM_MHz   | RnaG_MHz   | Lyric_FM_MHz   |   ERP_kW |
|-----------:|:---------------|------------:|:----------|:-----------|:---------------|---------:|
|          1 | Cairn Hill     |        89.8 | N/A       | N/A        | N/A            |     16   |
|          2 | Clermont Carn  |        87.8 | 97.0      | 102.7      | 95.2           |     40   |
|          3 | Kippure        |        89.1 | 91.3      | 93.5       | 98.7           |     40   |
|          4 | Maghera        |        88.8 | 91.0      | 93.2       | 98.4           |    160   |
|          5 | Mount Leinster |        89.6 | 91.8      | 94.0       | 99.2           |    100   |
|          6 | Mullaghanish   |        90   | 92.2      | 94.4       | 99.6           |    160   |
|          7 | Three Rock     |        88.5 | 90.7      | 92.9       | 96.7           |     12.5 |


Table: tv_show
|   tv_show_ID | tv_show_name                 | Sub_tittle                | Next_show_name          | Original_Airdate   |
|-------------:|:-----------------------------|:--------------------------|:------------------------|:-------------------|
|            1 | Peace and Quiet              | Wanted: Wade              | Garfield Goes an Hawaii | September17,1988   |
|            2 | Box O' Fun                   | Unidentified Flying Orson | School Daze             | September24,1988   |
|            3 | Nighty Nightmare             | Banana Nose               | Ode to Odie             | October1,1988      |
|            4 | Fraidy Cat                   | Shell Shocked Sheldon     | Nothing to Sneeze At    | October8,1988      |
|            5 | Garfield's Moving Experience | Wade: You're Afraid       | Good Mouse-keeping      | October15,1988     |
|            6 | Identity Crisis              | The Bad Sport             | Up a Tree               | October22,1988     |
|            7 | Weighty Problem              | The Worm Turns            | Good Cat, Bad Cat       | October29,1988     |
|            8 | Cabin Fever                  | Return of Power Pig       | Fair Exchange           | November5,1988     |
|            9 | The Binky Show               | Keeping Cool              | Don't Move              | November12,1988    |
|           10 | Magic Mutt                   | Short Story               | Monday Misery           | November19,1988    |


Table: city_channel_radio
|   City_channel_ID |   Radio_ID | Is_online   |
|------------------:|-----------:|:------------|
|                 1 |          1 | T           |
|                 2 |          2 | T           |
|                 3 |          3 | F           |
|                 4 |          4 | T           |
|                10 |          1 | F           |
|                 6 |          1 | T           |
|                 7 |          5 | F           |
|                 8 |          3 | T           |
|                 4 |          6 | T           |
|                12 |          2 | F           |


Table: city_channel_tv_show
|   City_channel_ID |   tv_show_ID | Is_online   | Is_free   |
|------------------:|-------------:|:------------|:----------|
|                12 |            2 | T           | F         |
|                13 |            1 | T           | F         |
|                14 |            1 | F           | F         |
|                11 |            4 | T           | T         |
|                 1 |            2 | T           | F         |
|                 2 |            3 | F           | F         |
|                 5 |            1 | T           | T         |
|                 7 |            2 | T           | T         |


Question: How many radios are there?

db_id: tv_shows
tables: name: city_channel
data: city_channel.csv
name: radio
data: radio.csv
name: tv_show
data: tv_show.csv
name: city_channel_radio
data: city_channel_radio.csv
name: city_channel_tv_show
data: city_channel_tv_show.csv
label: SELECT count(*) FROM radio
sqlite_path: $MMTU_HOME/data_sqlite/spider/spider_data/test_database/tv_shows/tv_shows.sqlite