def _string_dict(string):
    """splits a OCAD-string and returns a dict"""
    split_string = string.split('\t')
    i = 0
    string_dict = {}
    for codevalue in split_string:
        if i == 0:
            code = 'First'
            value = codevalue
        else:
            code = codevalue[0:1]
            value = codevalue[1:]
        string_dict[code] = value
        i += 1
    return string_dict
