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

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

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