In this task, You are given an open-domain question that can be answered based on factual information. Your task is to provide \*short\* answer (in a few words only) for the given question. The short answer can be one or more entities or it can also be boolean \*yes\* or \*no\*.

where was the first motte and bailey castle built
northern Europe

what is it called when you mix up the letters of a word
Dyslexia

who was islands in the stream written for

Marvin Gaye