Vector A is pointing eastwards and vector B northwards .If `|A|=|B|` then match the following two columns.
`{:(,"Column I ",,"Column II"),((A),(A+B),(P),"north -east"),((B),(A-B),(Q),"Vertically upwards"),((C), (AxxB),(r),"Vertically downwads"),((D), (AxxB)xx(AxxB),(s),"None"):}`