REMOVE

1. North American; Canadian
2. National Gallery of Canada
3. Brener, Roland

WHAT

1. Sculpture (3)
2. metal, glass, cardboard, … (1)
3. plastic, copper, bronze, … (1)
4. steel, aluminum, electro- … (1)

WHERE

1. North American; Canadian (3)
2. Canada: British Columbia, … (2)

WHO

1. Brener, Roland (3)
2. National Gallery of Canad … (3)

WHEN

1. 1989 (2)
2. 1992 (1)