Anchor: These appear to be in adequate supply and are not essential, since the erection plan can be modified to accommodate the use of smaller cranes, which are frequently more economical.
Entailed: They appear to have a lot a supply and aren't essential.
Contradiction: They appear to have a lot a supply but are essential.
Contradiction: The girls are marching with a banner.
Contradiction: Some people walking.
Contradiction: What, there isn't a company called TI?
Contradiction: A serving person has a tray of beverages.