Need assistance with editing fstab

Hi all,
First post here.
I’m running Mint 18.3, and want to automount 4 drives at boot up.
Here is my fstab file.
The last 4 entries are what I added. In this copy, they are commented out, because they stop my system from booting.
Can someone explain to me what part of the syntax I’ve got wrong, please? Much appreciated!

# <file system> <mount point>   <type>  <options>       <dump>  <pass>
# / was on /dev/sda4 during installation
UUID=274db08b-8310-4008-929c-3051148da0f7 /               ext4    errors=remount-ro 0       1
# /home was on /dev/sdd5 during installation
UUID=2734df43-a5d7-46c8-8f5d-b124994e4679 /home           ext4    defaults        0       2
# swap was on /dev/sdc3 during installation
UUID=d6a6be09-236e-4283-bf5e-47391939e1a0 none            swap    sw              0       0

# Photos on /dev/sdf1
# UUID=36ebc9fe-3428-4856-9551-8e9db342ac60   /media/usr/Photos-local ext4    defaults    0   2

# Data 2 on /dev/sdf2
# UUID=874be572-f0df-41df-9749-9b9028fa7b2d   /media/usr/Data-2   ntfs    defaults    0   2

# Data 3
# UUID=bc55f6cb-a049-46a4-bbb2-1816c70bbd8c   /media/usr/Data-3    ntfs    defaults    0   2

# Data 4
# UUID=27e127e0-01   /media/usr/Data-4    ntfs    defaults    0   2

I’ve moved this to the category because this site isn’t designed to take tech support questions. Sorry. I’d recommend using one of the official support channels Mint uses.