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

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

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