It's probably: Sure enough, Shiro was waiting for his master and the evening tid-bit. Then the old man said “Chin, chin!” and Shiro sat up and begged, and his master gave him the food, or maybe: <span>The happiest hour of the day both for the old man and his dog was when the man returned from his work in the field, </span>
Similarities: They are both scientists, they are both wearing lab coats, they are both in a laboratory. Differences: One's a boy, one's a girl, the boy scientist has equipment in front of him, The girl has a door behind her.
