Added a bit more of explanation
Added a bit more of explanation


Former-commit-id: 5eda8e8264a66bd59c488763ffcede5c39bad8cd [formerly 5eda8e8264a66bd59c488763ffcede5c39bad8cd [formerly b8cd0d83d752ef4bb0280622df7b74d8280c8309]]
Former-commit-id: 192d4d08f445742ff50c26160aba4ff798622149
Former-commit-id: bdc58c0bcf1e5e18251c4b186edb919cb586dc08
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine