*SUPPORT*
IN: lug tufa fep OUT: PURPLE GREEN
IN: fep OUT: PURPLE
IN: lug zup kiki dax OUT: GREEN YELLOW YELLOW YELLOW
IN: wif fep OUT: PINK PURPLE
IN: fep zup kiki dax OUT: PURPLE YELLOW YELLOW YELLOW
IN: fep tufa wif OUT: PINK PURPLE
IN: fep kiki lug dax OUT: PURPLE YELLOW GREEN GREEN GREEN
IN: kiki zup lug tufa kiki OUT: YELLOW YELLOW GREEN
IN: fep zup fep OUT: PURPLE PURPLE
IN: fep tufa lug OUT: GREEN PURPLE
IN: wif OUT: PINK
IN: fep dax OUT: PURPLE PURPLE PURPLE
IN: fep kiki OUT: PURPLE YELLOW
IN: wif zup fep tufa fep OUT: PINK PURPLE PURPLE

*QUERY*
IN: wif dax OUT: PINK PINK PINK
IN: lug dax OUT: GREEN GREEN GREEN
IN: lug zup kiki tufa wif OUT: GREEN PINK YELLOW
IN: kiki tufa wif OUT: PINK YELLOW
IN: fep zup lug dax OUT: PURPLE GREEN GREEN GREEN
IN: kiki fep wif tufa fep OUT: YELLOW PURPLE PURPLE PINK
IN: lug OUT: GREEN
IN: lug lug tufa lug OUT: GREEN GREEN GREEN
IN: wif zup wif dax OUT: PINK PINK PINK PINK
IN: fep tufa kiki OUT: YELLOW PURPLE

*GRAMMAR*
lug -> GREEN 
 fep -> PURPLE 
 kiki -> YELLOW 
 wif -> PINK 
 u1 tufa u2 -> [u2] [u1] 
 u1 dax -> [u1] [u1] [u1] 
 u1 zup x1 -> [u1] [x1] 
 u1 x1 -> [u1] [x1] 
 