original: it has a depth of approximately 18 inches -lrb- 46 cm -rrb- on the sides and 30 inches -lrb- 76 cm -rrb- in the center .
simplifications: it has a depth of 18 inches on the sides and 30 inches in the center . it has a depth of about 18 inches -lrb- 46 cm -rrb- on the sides and 30 inches -lrb- 76 cm -rrb- in the center . it has a depth of approximately 18 inches on the sides and 30 inches in the center it has a depth of about 18 inches -lrb- 46cm -rrb- on the sides and 30 inches -lrb- 76cm -rrb- in the center . it has a depth of approximately 18 inches -lrb- 46 cm -rrb- on the sides and 30 inches -lrb- 76 cm -rrb- in the center . it is approximately 18 inches -lrb- 46 cm -rrb- deep on the sides and 30 inches -lrb- 76 cm -rrb- in the center . it has a depth of nearly 18 inches -lrb- 46 cm -rrb- on the sides and 30 inches -lrb- 76 cm -rrb- in the center . it has a depth of approximately 18 inches on the sides and 30 inches in the center .