Premise: Lots of people are playing in the river that runs through the city and in the sandy park beside it.

Hypothesis: It's a hot, sunny day and people are cooling off in the river.
Relation: neutral

Hypothesis: The city park and river are completely devoid of people.
Relation: contradiction

Hypothesis: A crowd of people have gathered to play in the river and sandy park that are within the city.
Relation: entailment