Teacher: So what are you all going to say about this?
Sharon: Gilbert lied!
Gilbert: No! Raven lied!
Raven: bleh. You two lied!
so, who lied actually?
Sharon, Gilbert, or Raven? and how can?
Basically the diagram is like this
S->G->R
<- <- <-
Sharon accused that Gilbert lied, while Gilbert accused that Raven lied. Raven actually accused that both of them lied.
who lied actually?
Well, yes, I got only this information.
Sharon: Gilbert lied!
Gilbert: No! Raven lied!
Raven: bleh. You two lied!
so, who lied actually?
Sharon, Gilbert, or Raven? and how can?
Basically the diagram is like this
S->G->R
<- <- <-
Sharon accused that Gilbert lied, while Gilbert accused that Raven lied. Raven actually accused that both of them lied.
who lied actually?
Well, yes, I got only this information.