In nature, we see the fantastic diversity generated by a few basic structural elements: no more than a hundred varieties of atoms and a couple of primary colors, lead to a universe of infinite beauty and diversity.

FORBES: Creativity Must Have Structure

Many of the pupils from Overleigh St Mary's Primary School, waited to greet the couple outside the museum.

BBC: NEWS | UK | England | Merseyside | Honorary degree for prince's work

Another example is found in the case of a married couple where one spouse is the primary wage earner and dies prematurely.

FORBES: Magazine Article