Bed of roses and Grand slam

Bed of roses noun - A flower bed in which roses are growing.

Grand slam and bed of roses are semantically related In some cases you can use "Grand slam" instead a noun phrase "Bed of roses".

Grand slam noun - Winning all of the tricks in a hand of bridge.

Bed of roses and grand slam are semantically related in favorable outcome topic. Sometimes you can use "Bed of roses" instead a noun phrase "Grand slam".