Solution to a longer puzzle... Y = {S,T,A,R} , x <> {s,t,a,r}
One possible solution to the original puzzle is given by
1.2, 2.2, 3.3, 4.3, and 5.
holly
xxYYYxx hoARSen 1.1
xxxYYxY hoiSTeR 2.1
xxYYYxx hoSTAge 1.2
xxxYY hunTS or hulAS 3.1
xxYx huRl 4.1
xxYYYx huRRAh
xxYYY huRTS
xxYx huSh 4.2
xxxYY hydRA 3.2
xxxYYxY hydRAnT 2.2
xxxYY ideAS or iceRS 3.3
xxYx imAm 4.3
xxYYxYx inSTeAd 5
ivy
L. Flynn