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

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

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