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

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

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