scoreboard players set #villager pv_villagers 0
scoreboard players set #guard pv_guards 0
scoreboard players set #alive pv_alive 0

execute store result score #villager pv_villagers run execute if entity @e[type=minecraft:villager,x=-1,y=64,z=-9,dx=2,dy=2,dz=18]

execute store result score #guard pv_guards run execute if entity @e[type=guardvillagers:guard,x=-1,y=64,z=-9,dx=2,dy=2,dz=18]

scoreboard players operation #alive pv_alive = #villager pv_villagers
scoreboard players operation #alive pv_alive += #guard pv_guards