p a 0.2 p b 0.6, p a 0.2 p b 0.3, p a 0 . 5 p ab 0 . 2 p b 0 . 4 1 p ab 2 p a b, p a 0.4 p p 0.2, p a 0.3 p b 0.5, p a 0.4 p b 0.5, p a 0.3 p b 0.4, p a 0.3 p b 0.4 p ab 0.5, p a 0.7 p b 0.5, p a 0.4 p b, p a 0.2, p a 0.7 p a-b 0.3, p b 0.5 p a-b 0.3, p a 0.5, p a-b 0.3
p a 0.2 p b 0.6. There are any references about p a 0.2 p b 0.6 in here. you can look below.