Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
FLIP: You can Special Summon any number of "Black Sheep Tokens" (Zombie/DARK/Level 1/ATK 0/DEF 0).
--スケープ・ゴースト
--Scapeghost
local s,id=GetID()
function s.initial_effect(c)
	--spsummon
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON+CATEGORY_TOKEN)
	e1:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_FLIP+EFFECT_TYPE_TRIGGER_O)
	e1:SetProperty(EFFECT_FLAG_DELAY)
	e1:SetTarget(s.sptg)
	e1:SetOperation(s.spop)
	c:RegisterEffect(e1)
end
s.listed_names={67284108}
function s.sptg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and Duel.IsPlayerCanSpecialSummonMonster(tp,id+1,0,TYPES_TOKEN,0,0,1,RACE_ZOMBIE,ATTRIBUTE_DARK) end
	Duel.SetOperationInfo(0,CATEGORY_TOKEN,nil,1,0,0)
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,0)
end
function s.spop(e,tp,eg,ep,ev,re,r,rp)
	local ft=5
	if Duel.IsPlayerAffectedByEffect(tp,CARD_BLUEEYES_SPIRIT) then ft=1 end
	ft=math.min(ft,Duel.GetLocationCount(tp,LOCATION_MZONE))
	if ft<=0 or not Duel.IsPlayerCanSpecialSummonMonster(tp,id+1,0,TYPES_TOKEN,0,0,1,RACE_ZOMBIE,ATTRIBUTE_DARK) then return end
	local i=0
	repeat
		local token=Duel.CreateToken(tp,id+1+i)
		Duel.SpecialSummonStep(token,0,tp,tp,false,false,POS_FACEUP)
		ft=ft-1
		i=(i+1)%4
	until ft<=0 or not Duel.SelectYesNo(tp,aux.Stringid(id,1))
	Duel.SpecialSummonComplete()
end