def search_closet(items, colour):
    """ (list of str, str) -> list of str
 
    items is a list containing descriptions of the contents of a closet where
    every description has the form 'colour item', where each colour is one word
    and each item is one or more word.  For example:
 
        ['grey summer jacket', 'orange spring jacket', 'red shoes', 'green hat']
 
    colour is a colour that is being searched for in items. 
 
    Return a list containing only the items that match the colour.
 
    >>> search_closet(['red summer jacket', 'orange spring jacket', 'red shoes', 'green hat'], 'red')
    ['red summer jacket', 'red shoes']
    >>> search_closet(['red shirt', 'green pants'], 'blue')
    []
    >>> search_closet([], 'mauve')
    []
    """
    resSet = []
    for item in items:
        if (colour in item and item[0] == colour[0]):
            resSet.append(item)
    return resSet

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