Statements: Some teachers are students. All students are girls. Which inferences follow?

Statements: No cows are chairs. All chairs are tables. Which inference follows?

Statements: All rivers are ponds. Some waterfalls are ponds. All ponds are oceans. Which inference follows?

All dolls are pens. Some ducks are dolls. Some dogs are ducks. Which conclusions follow?

Read the following statements: Some pearls are jewels. Some jewels are ornaments. Conclusions: I. Some jewels are pearls. II. Some ornaments are jewels.

Read the following statements: All Z are Y. Some Y are B. Conclusions: I. Some B are not Z. II. Some Y are not Z. III. Some Z are Y. Select the correct answer.