Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
You can only activate this card when your opponent activates a card that targets a monster in the Graveyard. Remove from play all monsters in both players' Graveyards.
--大火葬
--Big Burn
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_REMOVE)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_BECOME_TARGET)
	e1:SetCondition(s.condition)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
end
function s.cfilter(c)
	return c:IsLocation(LOCATION_GRAVE) and c:IsMonster()
end
function s.condition(e,tp,eg,ep,ev,re,r,rp)
	return rp~=tp and eg:IsExists(s.cfilter,1,nil)
end
function s.filter(c)
	return c:IsMonster() and c:IsAbleToRemove() and aux.SpElimFilter(c)
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.filter,tp,LOCATION_MZONE|LOCATION_GRAVE,LOCATION_MZONE|LOCATION_GRAVE,1,nil) end
	if Duel.IsPlayerAffectedByEffect(e:GetHandlerPlayer(),CARD_SPIRIT_ELIMINATION) then
		Duel.SetOperationInfo(0,CATEGORY_REMOVE,nil,1,PLAYER_ALL,LOCATION_MZONE)
	else
		Duel.SetOperationInfo(0,CATEGORY_REMOVE,nil,1,PLAYER_ALL,LOCATION_GRAVE)
	end
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	local g=Duel.GetMatchingGroup(s.filter,tp,LOCATION_MZONE|LOCATION_GRAVE,LOCATION_MZONE|LOCATION_GRAVE,nil)
	Duel.Remove(g,POS_FACEUP,REASON_EFFECT)
end