*SUPPORT*
IN: dax tufa tufa fep kiki lug OUT: RED BLUE GREEN GREEN GREEN BLUE
IN: wif lug zup kiki zup wif OUT: PINK PINK PINK GREEN PINK
IN: wif OUT: PINK
IN: wif lug OUT: PINK PINK PINK
IN: wif wif kiki lug zup wif OUT: PINK PINK GREEN GREEN GREEN PINK
IN: kiki dax lug OUT: GREEN RED RED RED
IN: kiki zup dax lug OUT: GREEN RED RED RED
IN: tufa fep tufa kiki OUT: BLUE GREEN BLUE
IN: kiki fep tufa tufa kiki wif OUT: BLUE BLUE GREEN PINK GREEN
IN: wif fep wif zup dax lug zup dax OUT: PINK RED RED RED RED PINK
IN: dax wif lug OUT: RED PINK PINK PINK
IN: wif fep kiki lug OUT: GREEN GREEN GREEN PINK
IN: dax wif dax lug OUT: RED PINK RED RED RED
IN: kiki OUT: GREEN

*QUERY*
IN: tufa fep tufa fep wif lug OUT: PINK PINK PINK BLUE BLUE
IN: dax OUT: RED
IN: tufa lug OUT: BLUE BLUE BLUE
IN: dax zup wif tufa OUT: RED PINK BLUE
IN: kiki lug zup dax OUT: GREEN GREEN GREEN RED
IN: tufa fep dax zup wif OUT: RED PINK BLUE
IN: wif fep tufa dax kiki lug OUT: BLUE RED GREEN GREEN GREEN PINK
IN: wif tufa OUT: PINK BLUE
IN: kiki fep kiki OUT: GREEN GREEN
IN: dax fep wif OUT: PINK RED

*GRAMMAR*
kiki -> GREEN 
 tufa -> BLUE 
 dax -> RED 
 wif -> PINK 
 u1 lug -> [u1] [u1] [u1] 
 u1 fep x1 -> [x1] [u1] 
 x1 zup x2 -> [x1] [x2] 
 u1 x1 -> [u1] [x1] 
 