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

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

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