def typify(tokens):
    """
	Returns a dictionary of unique types with their frequencies.
	:param tokens:a list of tokens
	:type tokens:list
	:return:a dictionary of unique types with their frequencies.
	:rtype:dict
	"""
    temp_types = {}
    for word in tokens:
        if word not in temp_types.keys():
            temp_types[word] = 1
        else:
            temp_types[word] += 1
    return sorted(temp_types.items())
