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

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

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