来自时伟的问题
thehouse___windowfacessouthisforthedoctor.a.whichb.thatc.whosed.ofwhich
thehouse___windowfacessouthisforthedoctor.a.whichb.thatc.whosed.ofwhich


thehouse___windowfacessouthisforthedoctor.a.whichb.thatc.whosed.ofwhich
thehouse___windowfacessouthisforthedoctor.a.whichb.thatc.whosed.ofwhich
Cwhose