def compute_third(self, card1, card2):
card3 = Card("default", "default", "default", "default")
if card1.color == card2.color:
card3.color = card1.color
else:
card3.color = Features.computeColor(card1.color, card2.color)
if card1.shape == card2.shape:
card3.shape = card1.shape
else:
card3.shape = Features.computeShape(card1.shape, card2.shape)
if card1.number == card2.number:
card3.number = card1.number
else:
card3.number = Features.computeNumber(card1.number, card2.number)
if card1.texture == card2.texture:
card3.texture = card1.texture
else:
card3.texture = Features.computeTexture(card1.texture, card2.texture)
return card3
