#nexus
begin host;
tree host =((Host a:[4],Host b:[4]):[2],(Host c:[4], (Host d:[4], Host e:[4]):[4]):[3]):[1];
endblock;
begin parasite;
tree parasite = (Parasite 1:[4],((Parasite 2:[1,4],Parasite 3:[1,4]):[1,4],Parasite 4:[1,4]):[1,3]):[1,3];
endblock;
begin distribution;
Range
	Parasite 1 : Host a,
	Parasite 2 : Host b,
	Parasite 3 : Host c,
	Parasite 4 : Host e;
endblock;