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)

Try an external keyboard to verify that the internal one is damaged.
If it needs to be replaced, take it to an Apple store or service facility.

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Macbook pro keYboard not working properlY

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