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

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

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