Three people are in an alley with a dumpster , one skateboarding over the dumpster while the other two look on .
It is probable that three people are in an alley with a white dumpster .
Chances are slight that three people are in an alley with a white dumpster .
It is probable that three people are in an alley with a white dumpster .
Three people are in an alley with a white dumpster .