Given a category and a set of five words, find the word from the set that does not belong (i.e. is the least relevant) with the other words in the category. Words are separated by commas.

Category: geographical property 
Words: studio, hill, flat, even, horizontal
studio

Category: window material 
Words: panel, translucent fabric, spatula, metal, glass
spatula

Category: moral characteristic 
Words: dishonest, fair, unprejudiced, texture, equitable

texture