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

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

*GRAMMAR*
lug -> PINK 
 tufa -> GREEN 
 wif -> YELLOW 
 dax -> RED 
 u1 kiki -> [u1] [u1] 
 x1 zup u1 -> [u1] [u1] [u1] [x1] 
 u1 fep u2 -> [u1] [u2] [u1] [u1] [u2] [u2] 
 u1 x1 -> [u1] [x1] 
 