human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge is induced by one source paper and its member nodes are the cited papers.

Details of the hypergraph:
Center hyperedge (induced by source paper "inference of phylogenetic trees from the knowledge of rare evolutionary events"):
  Abstract: Rare events have played an increasing role in molecular phylogenetics as potentially homoplasy-poor characters. In this contribution we analyze the phylogenetic information content from a combinatorial point of view by considering the binary relation on the set of taxa defined by the existence of single event separating two taxa. We show that the graph-representation of this relation must be a tree. Moreover, we characterize completely the relationship between the tree of such relations and the underlying phylogenetic tree. With directed operations such as tandem-duplication-random-loss events in mind we demonstrate how non-symmetric information constrains the position of the root in the partially reconstructed phylogeny.

Includes members:
  Member "the mathematics of xenology di cographs symbolic ultrametrics 2 structures and tree representable systems of binary relations":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "generalized fitch graphs iii symmetrized fitch maps and sets of symmetric binary relations that are explained by unrooted edge labeled trees")
  Member "phylogenomics with paralogs":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "faster and enhanced inclusion minimal cograph completion")
  Member "on symbolic ultrametrics cotree representations and cograph edge decompositions and partitions":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "cograph editing merging modules is equivalent to editing p4 s")
  Member "on tree representations of relations and graphs symbolic ultrametrics and cograph edge decompositions":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "cograph editing merging modules is equivalent to editing p4 s")

Question: Please tell me which class the source paper belongs to. The 40 classes are: cs.NA(Numerical Analysis), cs.MM(Multimedia), cs.LO(Logic in Computer Science), cs.CY(Computers and Society), cs.CR(Cryptography and Security), cs.DC(Distributed, Parallel, and Cluster Computing), cs.HC(Human-Computer Interaction), cs.CE(Computational Engineering, Finance, and Science), cs.NI(Networking and Internet Architecture), cs.CC(Computational Complexity), cs.AI(Artificial Intelligence), cs.MA(Multiagent Systems), cs.GL(General Literature), cs.NE(Neural and Evolutionary Computing), cs.SC(Symbolic Computation), cs.AR(Hardware Architecture), cs.CV(Computer Vision and Pattern Recognition), cs.GR(Graphics), cs.ET(Emerging Technologies), cs.SY(Systems and Control), cs.CG(Computational Geometry), cs.OH(Other Computer Science), cs.PL(Programming Languages), cs.SE(Software Engineering), cs.LG(Machine Learning), cs.SD(Sound), cs.SI(Social and Information Networks), cs.RO(Robotics), cs.IT(Information Theory), cs.PF(Performance), cs.CL(Computation and Language), cs.IR(Information Retrieval), cs.MS(Mathematical Software), cs.FL(Formal Languages and Automata Theory), cs.DS(Data Structures and Algorithms), cs.OS(Operating Systems), cs.GT(Computer Science and Game Theory), cs.DB(Databases), cs.DL(Digital Libraries), cs.DM(Discrete Mathematics). Directly output the class name.

gpt: cs.DM(Discrete Mathematics)