[System] You are an English linguist performing fine-grained Word Sense Disambiguation. WordNet glosses are schematic. Use the sentence context, the examples, and the synonyms to choose the best indexed sense. Do not hedge. Choose the single best indexed sense.

[User]
Target lemma: people
Target surface form: people
Context:
For follow-up treatment, the animal owner can administer the tablets to the dog. Also, the treatment of vomiting should only be together with other supportive measure or other veterinary therapy while addressing the underlying causes of the vomiting. What is the risk associated with Cerenia? Cerenia was generally well tolerated when administered daily at dosages up to 5 times the recommended doses for an extended period of time (up to 3 times the recommended maximum duration of treatment). What are the precautions for the person who gives the medicine or comes into contact with the animal? Cerenia does not represent a particular risk for <t>people</t>.

Candidate senses:
1. sense_key=people%1:14:00:: | definition=(plural) any group of human beings (men or women or children) collectively | examples=old people; there were at least 200 people in the audience
2. sense_key=people%1:14:01:: | definition=the body of citizens of a state or country | synonyms=citizenry | examples=the Spanish people
3. sense_key=people%1:14:02:: | definition=members of a family line | examples=his people have been farmers for generations; are your people still alive?
4. sense_key=people%1:14:03:: | definition=the common people generally | synonyms=multitude, masses, mass, hoi polloi, the great unwashed | examples=separate the warriors from the mass; power to the people

Instructions:
1. Choose the single best indexed sense for the target word in context.
2. WordNet glosses are schematic; use the context, synonyms, and examples together.
3. Do not answer with a WordNet sense key.
4. Return only a JSON object exactly like {"sense_index": 3}.

reasoning_content:
The target word is "people" in the context: "Cerenia does not represent a particular risk for <t>people</t>."
The context is about the risk of a veterinary medicine (Cerenia) to the person who gives the medicine or comes into contact with the animal.
The word "people" here refers to human beings in general, as opposed to animals.
Let's look at the candidate senses:
1. sense_key=people%1:14:00:: | definition=(plural) any group of human beings (men or women or children) collectively | examples=old people; there were at least 200 people in the audience
2. sense_key=people%1:14:01:: | definition=the body of citizens of a state or country | synonyms=citizenry | examples=the Spanish people
3. sense_key=people%1:14:02:: | definition=members of a family line | examples=his people have been farmers for generations; are your people still alive?
4. sense_key=people%1:14:03:: | definition=the common people generally | synonyms=multitude, masses, mass, hoi polloi, the great unwashed | examples=separate the warriors from the mass; power to the people

Sense 1 fits best: "any group of human beings collectively". The context contrasts "people" with "the animal".
Therefore, sense 1 is the correct choice.
The output format must be exactly {"sense_index": 1}.