Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
This card is treated as a Normal Monster while face-up on the field or in the Graveyard. While this card is a Normal Monster on the field, you can Normal Summon it to have it become an Effect Monster with this effect. ● If your opponent activates a Spell Card: You can target 1 Gemini monster in your Graveyard; Special Summon that target. During either player's turn, when a Spell/Trap Card is activated that targets a monster(s) on the field: You can send 1 face-up Equip Card you control to the Graveyard; negate the activation, and if you do, destroy it.
--フェニックス・ギア・フリード
--Phoenix Gearfried
local s,id=GetID()
function s.initial_effect(c)
	Gemini.AddProcedure(c)
	--Special Summon 1 Gemini monster
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET+EFFECT_FLAG_DELAY)
	e1:SetCode(EVENT_CHAINING)
	e1:SetRange(LOCATION_MZONE)
	e1:SetCondition(s.spcon)
	e1:SetTarget(s.sptg)
	e1:SetOperation(s.spop)
	c:RegisterEffect(e1)
	--Negate Spell/Trap card activation
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_NEGATE+CATEGORY_DESTROY)
	e2:SetType(EFFECT_TYPE_QUICK_O)
	e2:SetProperty(EFFECT_FLAG_DAMAGE_STEP+EFFECT_FLAG_DAMAGE_CAL)
	e2:SetCode(EVENT_CHAINING)
	e2:SetRange(LOCATION_MZONE)
	e2:SetCondition(s.negcon)
	e2:SetCost(s.negcost)
	e2:SetTarget(s.negtg)
	e2:SetOperation(s.negop)
	c:RegisterEffect(e2)
	aux.DoubleSnareValidity(c,LOCATION_MZONE)
end
function s.spcon(e,tp,eg,ep,ev,re,r,rp)
	return Gemini.EffectStatusCondition(e) and not e:GetHandler():IsStatus(STATUS_BATTLE_DESTROYED)
		and rp==1-tp and re:IsSpellEffect() and re:IsHasType(EFFECT_TYPE_ACTIVATE)
end
function s.filter(c,e,tp)
	return c:IsType(TYPE_GEMINI) and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_GRAVE) and chkc:IsControler(tp) and s.filter(chkc,e,tp) end
	if chk==0 then return e:GetHandler():IsRelateToEffect(e)
		and Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and Duel.IsExistingTarget(s.filter,tp,LOCATION_GRAVE,0,1,nil,e,tp) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local g=Duel.SelectTarget(tp,s.filter,tp,LOCATION_GRAVE,0,1,1,nil,e,tp)
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,g,1,0,0)
end
function s.spop(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc and tc:IsRelateToEffect(e) then
		Duel.SpecialSummon(tc,0,tp,tp,false,false,POS_FACEUP)
	end
end
function s.negcon(e,tp,eg,ep,ev,re,r,rp)
	if not (Gemini.EffectStatusCondition(e) and re:IsHasProperty(EFFECT_FLAG_CARD_TARGET)
		and re:IsHasType(EFFECT_TYPE_ACTIVATE) and Duel.IsChainNegatable(ev)) then return false end
	local g=Duel.GetChainInfo(ev,CHAININFO_TARGET_CARDS)
	return g and g:IsExists(Card.IsLocation,1,nil,LOCATION_MZONE)
end
function s.cfilter(c)
	return c:IsFaceup() and c:IsType(TYPE_EQUIP) and c:IsAbleToGraveAsCost()
end
function s.negcost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.cfilter,tp,LOCATION_ONFIELD,0,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TOGRAVE)
	local g=Duel.SelectMatchingCard(tp,s.cfilter,tp,LOCATION_ONFIELD,0,1,1,nil)
	Duel.SendtoGrave(g,REASON_COST)
end
function s.negtg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return true end
	Duel.SetOperationInfo(0,CATEGORY_NEGATE,eg,1,0,0)
	local rc=re:GetHandler()
	if rc:IsRelateToEffect(re) and rc:IsDestructable() then
		Duel.SetOperationInfo(0,CATEGORY_DESTROY,eg,1,0,0)
	end
end
function s.negop(e,tp,eg,ep,ev,re,r,rp)
	local rc=re:GetHandler()
	if Duel.NegateActivation(ev) and rc:IsRelateToEffect(re) then
		Duel.Destroy(rc,REASON_EFFECT)
	end
end