I use python and in python, three quotation marks in a row

```
"""

```

or

```
'''

```

signify a block-comment, and a normal comment is just a hashtag. (#)
I want comments to be colored grey and strings to be colored orange. I am using the colorscheme murphy. I made a murphy-mine.vim file and I added this to it

```
hi Comment term=bold     ctermfg=Grey     guifg=Grey
hi String  term=bold     ctermfg=LightRed guifg=Orange

```

But gvim sees `"""` and `'''` as a string in python syntax rather than treating it as a comment (block comment). Is there a way for me to tell gvim to see `"""` and `'''` as a comment / block comment rather than a string?