Chose one of the three Samples as the most analogous to the Model, and write it down, with your reasoning.

21.- Novel-Writer :-) A Novel is work of art, as is a Portrait (obviouly there is good and bad, art). Photography is also considered a type of art, but it is basically a machine-made one. Piano-Pianist do not fit, for a pianist doesn't make pianos. How can we define the attribute? I can think of 'relationship': between the artist and his personal creation.

22.- Odometer-Distance :-) A clock doesn't 'measure' time. It just shows a given activity, such as the movement of a watch's hands, or sand's disppearance in a sand clock. By the same token, an Odometer doesn't 'measure' Distance: it is activated by gears. Differently, an Amperometer does measure Electricity, since the latter it is the cause of the former's changes, and a Measuring tape does measure Lenght.
The attribute is: by function (of measuring by indirect means).