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

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

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