app.py

import gradio as gr

value_map = [{"animal":"cat","value":"cat_value"}, {"animal":"dog","value":"dog_value"}, {"animal":"bird","value":"bird_value"}]
aminals = [d['animal'] for d in value_map]
vulaes = [e['value'] for e in value_map]

def sentence_builder(beast):
    ##return value_map[value_map.index(animal)][1]
    best = aminals.index(beast)
    return vulaes[best]

demo = gr.Interface(sentence_builder,gr.Dropdown(choices=aminals, value=aminals[0], label="Animal"),"text")

if __name__ == "__main__":
    demo.launch()