Certain text entry as a trigger?

Hi. In 3d widget I want that when a user types a certain word into a certain a text box - something will occur. For example, a sound or a cut scene.
For example, sound “apple” will play for word “apple”, sound “siren” will play for word “metro”, etc. Can you please help? I extremely need to know how this is done, please, help me you can.

See if that works for you:

Thanks mate! You rock! I ll try it!

Thanks bro! It works! It works! Ahaha, yas! God bless you!