Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
If this card is sent to the Graveyard as a Synchro Material Monster for a Synchro Summon, send the top 2 cards from your opponent's Deck to the Graveyard.
--二角獣レーム
--Bicorn Re'em
local s,id=GetID()
function s.initial_effect(c)
	--deckdes
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_DECKDES)
	e1:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_F)
	e1:SetCode(EVENT_BE_MATERIAL)
	e1:SetProperty(EFFECT_FLAG_PLAYER_TARGET)
	e1:SetCondition(s.ddcon)
	e1:SetTarget(s.ddtg)
	e1:SetOperation(s.ddop)
	c:RegisterEffect(e1)
end
function s.ddcon(e,tp,eg,ep,ev,re,r,rp)
	return e:GetHandler():IsLocation(LOCATION_GRAVE) and r==REASON_SYNCHRO
end
function s.ddtg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return true end
	Duel.SetTargetPlayer(1-tp)
	Duel.SetOperationInfo(0,CATEGORY_DECKDES,nil,0,1-tp,2)
end
function s.ddop(e,tp,eg,ep,ev,re,r,rp)
	local p=Duel.GetChainInfo(0,CHAININFO_TARGET_PLAYER)
	Duel.DiscardDeck(p,2,REASON_EFFECT)
end