Macbook pro keYboard not working properlY

Hello,

I suspect mY kids split a drink over mY macbook pro. MY keyboard has several issues:

-When I type lower case Y, I onlY get uppercase Y.

-When pressing the spacebar I get a space but its followed bY a closed square bracket.

-When pressing enter the function works but the forward slash character is displaYed.

Does this mean I need to replace the keYboard, if so how can I find the part number for the keyboard.

Thanks for support

Shaun

MacBook Pro (13-inch Early 2011), OS X Yosemite (10.10.1)