Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
"Gem-Knight Lapis" + 1 "Gem-Knight" monster Must first be Fusion Summoned with the above Fusion Materials. You can only Special Summon "Gem-Knight Lady Lapis Lazuli(s)" once per turn. Once per turn: You can send 1 "Gem-Knight" monster from your Main Deck or Extra Deck to the Graveyard, and if you do, inflict 500 damage to your opponent for each Special Summoned monster on the field.
--ジェムナイトレディ・ラピスラズリ
--Gem-Knight Lady Lapis Lazuli
local s,id=GetID()
function s.initial_effect(c)
	c:SetSPSummonOnce(id)
	--fusion material
	c:EnableReviveLimit()
	Fusion.AddProcMix(c,false,false,99645428,aux.FilterBoolFunctionEx(Card.IsSetCard,SET_GEM_KNIGHT))
	--spsummon condition
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetProperty(EFFECT_FLAG_CANNOT_DISABLE+EFFECT_FLAG_UNCOPYABLE)
	e1:SetCode(EFFECT_SPSUMMON_CONDITION)
	e1:SetValue(s.splimit)
	c:RegisterEffect(e1)
	--damage
	local e2=Effect.CreateEffect(c)
	e2:SetCategory(CATEGORY_DAMAGE+CATEGORY_DECKDES)
	e2:SetType(EFFECT_TYPE_IGNITION)
	e2:SetProperty(EFFECT_FLAG_PLAYER_TARGET)
	e2:SetRange(LOCATION_MZONE)
	e2:SetCountLimit(1)
	e2:SetTarget(s.damtg)
	e2:SetOperation(s.damop)
	c:RegisterEffect(e2)
end
s.listed_series={SET_GEM_KNIGHT}
s.material_setcode={SET_GEM,SET_GEM_KNIGHT}
function s.splimit(e,se,sp,st)
	return not e:GetHandler():IsLocation(LOCATION_EXTRA) or (st&SUMMON_TYPE_FUSION)==SUMMON_TYPE_FUSION
end
function s.filter(c)
	return c:IsSetCard(SET_GEM_KNIGHT) and c:IsMonster() and c:IsAbleToGrave()
end
function s.ctfilter(c)
	return c:IsSpecialSummoned()
end
function s.damtg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.filter,tp,LOCATION_DECK|LOCATION_EXTRA,0,1,nil)
		and Duel.IsExistingMatchingCard(s.ctfilter,tp,LOCATION_MZONE,LOCATION_MZONE,1,nil) end
	local ct=Duel.GetMatchingGroupCount(s.ctfilter,tp,LOCATION_MZONE,LOCATION_MZONE,nil)
	Duel.SetTargetPlayer(1-tp)
	Duel.SetOperationInfo(0,CATEGORY_DAMAGE,nil,0,1-tp,ct*500)
end
function s.damop(e,tp,eg,ep,ev,re,r,rp)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TOGRAVE)
	local g=Duel.SelectMatchingCard(tp,s.filter,tp,LOCATION_DECK|LOCATION_EXTRA,0,1,1,nil)
	if #g>0 then
		Duel.SendtoGrave(g,REASON_EFFECT)
			local ct=Duel.GetOperatedGroup():FilterCount(Card.IsLocation,nil,LOCATION_GRAVE)
			if ct>0 then
				local p=Duel.GetChainInfo(0,CHAININFO_TARGET_PLAYER)
				local ct=Duel.GetMatchingGroupCount(s.ctfilter,tp,LOCATION_MZONE,LOCATION_MZONE,nil)
				Duel.Damage(p,ct*500,REASON_EFFECT)
			end
	end
end