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

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

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