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

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

*GRAMMAR*
lug -> RED 
 gazzer -> YELLOW 
 tufa -> GREEN 
 wif -> PURPLE 
 u1 dax u2 -> [u1] [u2] 
 x1 blicket x2 -> [x2] [x2] [x2] [x1] [x1] 
 u1 zup u2 -> [u2] [u1] 
 u1 x1 -> [u1] [x1] 
 