liblemon-doc 1.3.1+dfsg-1 (s390x binary) in ubuntu cosmic

 LEMON stands for Library for Efficient Modeling and Optimization in
 Networks. It is a C++ template library providing efficient
 implementations of common data structures and algorithms with focus
 on combinatorial optimization tasks connected mainly with graphs
 and networks.
 .
 LEMON is a member of the COIN-OR initiative, a collection of OR related
 open source projects.
 .
 This package contains the library documentation.