consolidateInlines (Subscript xs : Subscript ys : zs) = consolidateInlines $
  Subscript (xs ++ ys) : zs
consolidateInlines (Subscript xs : Subscript ys : zs) = consolidateInlines $
  Subscript (xs ++ ys) : zs
consolidateInlines (Subscript xs : Subscript ys : zs) = consolidateInlines $
  Subscript (xs ++ ys) : zs