"Urn"

"U, /ugh/, Urn."
"What is 'urn'? Urn can be filled with water; Urn can filled with sand."

"ok, now, tell me what can you put in the urn."

"Urn can be filled with water."
"some more..."
"Urn can filled with sand."
"some more..."
"Urn can be filled with water."
"some more..."
"Urn can filled with sand."
"some more..."
"Urn can be filled with water."
"some more..."
"Urn can filled with sand."
"some more..."
"Urn can be filled with water."

wa kept on repeating the twos that i said.
ok, i can't brainstorm him with new ideas, but at least, he remembered my 2 points:)