Anchor: Long-term projects, such as retrofits of more than one unit at one site, also lend themselves to additional efficiencies from learning curves.
Entailed: Long-term projects are more efficient when it comes to learning curves.
Contradiction: Retrofits can only be done for one unit at each site.
Contradiction: An orchestra playing in an opera hall.
Contradiction: A man is standing and holding a frozen dessert.
Contradiction: That is hilarious.  
Contradiction: Wooden cages held the criminals suspended from it.