$ clips
         CLIPS (V6.24 06/15/06)
CLIPS> (load simulation-model.clp)
....
CLIPS> (reset)
CLIPS> (run)
MOTHER-PIG's message to PIG-3: You are too big, go and build a house but take care
PIG-3's action: It set off
PIG-3's action: Met a man with straw
PIG-3's decision: I shall build a stronger house than from straw
PIG-3's action: Met a man with sticks
PIG-3's decision: I shall build a stronger house than from sticks
PIG-3's action: Met a man with bricks
PIG-3's action: Built a house out of bricks
MOTHER-PIG's message to PIG-2: You are too big, go and build a house but take care
PIG-2's action: It set off
PIG-2's action: Met a man with straw
PIG-2's decision: I shall build a stronger house than from straw
PIG-2's action: Met a man with sticks
PIG-2's action: Built a house out of sticks
MOTHER-PIG's message to PIG-1: You are too big, go and build a house but take care
PIG-1's action: It set off
PIG-1's action: Met a man with straw
PIG-1's action: Built a house out of straw
WOLF-1's action: Came along the road to pig's house 
WOLF-1's request to PIG-1: Little pig, little pig, let me come in
PIG-1's decision: By the hair of my chinny chin chin, I will not let you come in
WOLF-1's action: He huffed and he puffed and he huffed and he puffed
HOUSE's event: The house of straw fell down
WOLF-1's action : Ate the PIG-1
WOLF-1's action: Came along the road to pig's house 
WOLF-1's request to PIG-2: Little pig, little pig, let me come in
PIG-2's decision: By the hair of my chinny chin chin, I will not let you come in
WOLF-1's action: He huffed and he puffed and he huffed and he puffed
HOUSE's event: The house of sticks fell down
WOLF-1's action : Ate the PIG-2
WOLF-1's action: Came along the road to pig's house 
WOLF-1's request to PIG-3: Little pig, little pig, let me come in
PIG-3's decision: By the hair of my chinny chin chin, I will not let you come in
WOLF-1's action: He huffed and he puffed and he huffed and he puffed
HOUSE's event: No damage to the house of bricks
WOLF-1's action: He climbed on the roof, fall down the chimney into boiled water
CLIPS> (exit)