The bulk update request #9663 is pending approval.

create implication black_grass (3) -> grass (88833)
create implication blue_grass (35) -> grass (88833)
create implication brown_grass (2) -> grass (88833)
create implication green_grass (343) -> grass (88833)
create implication grey_grass (6) -> grass (88833)
create implication orange_grass (28) -> grass (88833)
create implication pink_grass (19) -> grass (88833)
create implication purple_grass (41) -> grass (88833)
create implication red_grass (24) -> grass (88833)
create implication tan_grass (1) -> grass (88833)
create implication teal_grass (7) -> grass (88833)
create implication white_grass (3) -> grass (88833)
create implication yellow_grass (37) -> grass (88833)

Reason: All colors of grass, whether realistic (blue, green, tan, teal, yellow) or fantastical.