(Sarah of the Clue Crew gives the clue.) We've rubbed the pigment of a radish on these cards; lemon juice turns the pigment orange, indicating that it's an acid; milk of magnesia turns it blue, indicating that it's this
[DOC] [TLE] jeopardy/2267_Qs.txt at master  jedoublen/jeopardy  GitHub [PAR] IT'S ON THE TIP OF MY TONGUE | You know, this place... London's West End... 
775 rooms, 4 .... Sarah of the Clue Crew gives the clue.)