"lore" in command not working

Hi,

When I enter a command eg: /give @p minecraft:diamond_sword 1 0 {display:{Name:"sword",Lore:[kills mobs]}} the command doesn't work and it tells you "data tag parsing failed: Expected ']' but got 'm' at: ...display:{Name:"sword",Lore:[kills m<--- [HERE]
If you do know how to fix it I would really appreciate if you would be able to please reply and tell me what to do.
Kind Regards,
Marley
PS screenshot in attachment below