Frank's dog is barking while Gavin's isn't
Frank's Bicycle is different from Gavin's
Gavin's scarf is longer than Frank's
Gavin's rod tip is a different colour than Frank's
Gavin's chair is smaller than Frank's
Frank's hat is bigger than Gavin's
Frank's pants are tucked in his boots while Gavin's aren't
Gavin's sweatshirt is white while Frank's is red
