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

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

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