In this task, you're given passages that contain mentions of names of people, places, or things. Some of these mentions refer to the same person, place, or thing. Your job is to write questions that evaluate one's understanding of such references. Good questions are expected to link pronouns (she, her, him, his, their, etc.) or other mentions to people, places, or things to which they may refer. Do not ask questions that can be answered correctly without understanding the paragraph or having multiple answers. Avoid questions that do not link phrases referring to the same entity. For each of your questions, the answer should be one or more phrases in the paragraph, and it should be unambiguous.

Passage: It is winter time and Krazy is in his horse-drawn sleigh, running through the snowy outdoors. Next, he stops over at the house of his spaniel girlfriend. Krazy then calls and invites her to go out with him. Showing herself through a window, the spaniel discloses she cannot come outside because her door is blocked by thick snow. In this, Krazy and his horse goes on to clear the doorway. In just a short while, the impeding snow has been removed, and the spaniel finally steps out. They then head off in the sleigh.
Krazy and the spaniel arrive at their destination, the frozen lake. They then put on their ice skates and set foot on the ice. For several moments, things are going very smooth for them. Their movements are fluent and they never stumble into things. This is until Krazy crashes into a wooden barrel and starts to lose control. He then overshoots the edge of the lake and gets himself into a snowy slope. As he tumbles down the slope, Krazy becomes covered in snow and immediately becomes a large rampaging snowball. The snowball bashes a cabin and rolls into a barn where it runs over the farm animals. Finally, it spatters onto a larger house, and Krazy is free at last. Just nearby him is the spaniel who is relieved to know he is unharmed. Without further ado, they continue looking for ways to spend time in the frosty landscape.
Who head off in the sleigh?