system: 
You are an expert in composing functions. You are given a question and a set of possible functions.
Based on the question, you will need to make one or more function/tool calls to achieve the purpose.
If none of the function can be used, point it out. If the given question lacks the parameters required by the function,
also point it out. You should only return the function call in tools call sections.

If you decide to invoke any of the function(s), you MUST put it in the format of [func_name1(params_name1=params_value1, params_name2=params_value2...), func_name2(params)]

You SHOULD NOT include any other text in the response.

Here is a list of functions in JSON format that you can invoke.

[{'name': 'Media_3_FindMovies', 'description': "Search for movies that fit a user's preferences such as genre and starring actors. Note that the provided function is in Python 3 syntax.", 'parameters': {'type': 'dict', 'required': ['genre'], 'properties': {'genre': {'type': 'string', 'description': 'The genre of the movie to search for.', 'enum': ['World', 'Fantasy', 'Offbeat', 'Mystery', 'Musical', 'Thriller', 'Comedy', 'Horror', 'Animation', 'Cult', 'Sci-fi', 'War', 'Drama', 'Family', 'Action']}, 'starring': {'type': 'string', 'description': "The name of a specific actor or actress the user wants to see in the movie. Use 'All' to include any.", 'default': 'All'}}}}, {'name': 'Media_3_PlayMovie', 'description': 'Streams a selected movie online with the option to choose subtitles in various languages. Note that the provided function is in Python 3 syntax.', 'parameters': {'type': 'dict', 'required': ['title'], 'properties': {'title': {'type': 'string', 'description': 'The title of the movie to be streamed.'}, 'subtitle_language': {'type': 'string', 'description': "The preferred language for the movie's subtitles.", 'enum': ['English', 'Spanish', 'Hindi', 'French'], 'default': 'English'}}}}, {'name': 'Music_3_PlayMedia', 'description': 'Plays a specified track on a designated media player device. Note that the provided function is in Python 3 syntax.', 'parameters': {'type': 'dict', 'required': ['track'], 'properties': {'track': {'type': 'string', 'description': 'The title of the song to be played.'}, 'artist': {'type': 'string', 'description': 'The name of the artist performing the song. If unspecified, any artist is acceptable.', 'default': 'dontcare'}, 'device': {'type': 'string', 'description': 'The media player device where the song will be played.', 'enum': ['Living room', 'Kitchen', 'Patio'], 'default': 'Living room'}, 'album': {'type': 'string', 'description': 'The album where the song is featured. If unspecified, any album is acceptable.', 'default': 'dontcare'}}}}, {'name': 'Music_3_LookupMusic', 'description': "Retrieve a list of songs that align with the user's musical preferences based on artist, album, genre, and release year. Note that the provided function is in Python 3 syntax.", 'parameters': {'type': 'dict', 'properties': {'artist': {'type': 'string', 'description': "The name of the artist or band. Use 'dontcare' if this is not a filtering criterion.", 'default': 'dontcare'}, 'album': {'type': 'string', 'description': "The title of the album. Use 'dontcare' if this is not a filtering criterion.", 'default': 'dontcare'}, 'genre': {'type': 'string', 'description': "The musical genre of the songs. Select 'dontcare' to include all genres.", 'enum': ['Reggae', 'Holiday', 'Electropop', 'Pop', 'Asia', 'House', 'Electronica', 'Funk', 'Rock', 'Metal', 'Dubstep', 'Country', 'dontcare'], 'default': 'dontcare'}, 'year': {'type': 'integer', 'description': "The release year of the song. Use 'dontcare' to include songs from any year.", 'default': 'dontcare'}}, 'required': []}}]


user: Help me look for Pop songs from 2013. Maybe something by Justin Bieber.

Available functions:
[{"name": "Media_3_FindMovies", "description": "Search for movies that fit a user's preferences such as genre and starring actors.", "parameters": {"type": "dict", "required": ["genre"], "properties": {"genre": {"type": "string", "description": "The genre of the movie to search for.", "enum": ["World", "Fantasy", "Offbeat", "Mystery", "Musical", "Thriller", "Comedy", "Horror", "Animation", "Cult", "Sci-fi", "War", "Drama", "Family", "Action"]}, "starring": {"type": "string", "description": "The name of a specific actor or actress the user wants to see in the movie. Use 'All' to include any.", "default": "All"}}}}, {"name": "Media_3_PlayMovie", "description": "Streams a selected movie online with the option to choose subtitles in various languages.", "parameters": {"type": "dict", "required": ["title"], "properties": {"title": {"type": "string", "description": "The title of the movie to be streamed."}, "subtitle_language": {"type": "string", "description": "The preferred language for the movie's subtitles.", "enum": ["English", "Spanish", "Hindi", "French"], "default": "English"}}}}, {"name": "Music_3_PlayMedia", "description": "Plays a specified track on a designated media player device.", "parameters": {"type": "dict", "required": ["track"], "properties": {"track": {"type": "string", "description": "The title of the song to be played."}, "artist": {"type": "string", "description": "The name of the artist performing the song. If unspecified, any artist is acceptable.", "default": "dontcare"}, "device": {"type": "string", "description": "The media player device where the song will be played.", "enum": ["Living room", "Kitchen", "Patio"], "default": "Living room"}, "album": {"type": "string", "description": "The album where the song is featured. If unspecified, any album is acceptable.", "default": "dontcare"}}}}, {"name": "Music_3_LookupMusic", "description": "Retrieve a list of songs that align with the user's musical preferences based on artist, album, genre, and release year.", "parameters": {"type": "dict", "properties": {"artist": {"type": "string", "description": "The name of the artist or band. Use 'dontcare' if this is not a filtering criterion.", "default": "dontcare"}, "album": {"type": "string", "description": "The title of the album. Use 'dontcare' if this is not a filtering criterion.", "default": "dontcare"}, "genre": {"type": "string", "description": "The musical genre of the songs. Select 'dontcare' to include all genres.", "enum": ["Reggae", "Holiday", "Electropop", "Pop", "Asia", "House", "Electronica", "Funk", "Rock", "Metal", "Dubstep", "Country", "dontcare"], "default": "dontcare"}, "year": {"type": "integer", "description": "The release year of the song. Use 'dontcare' to include songs from any year.", "default": "dontcare"}}, "required": []}}]

Ground-truth function call:
[{"Music_3_LookupMusic": {"artist": ["Justin Bieber"], "album": ["", "dontcare"], "genre": ["Pop"], "year": [2013]}}]