We are parallelograms we are three different polygons sometimes we share our names what are we

Trapezoids (A and J are "typical" examples, but all parallelograms also fit the definition of trapezoids); parallelograms (E is the "typical" example, but all rectangles and rhombuses also fit the definition of parallelograms); rectangles (F is the "typical" example, but all squares also fit the definition of rectangles); rhombuses (C and D are the "typical" examples, but all squares also fit the definition of rhombuses); squares (B), the most special of them all