Suppose The Lost Keys<br>Sam was running late for an important meeting and couldn't find his car keys anywhere. He searched frantically in his jacket pockets, pants pockets, and even under the couch cushions. Finally, he found them in the kitchen drawer where he had left them. Sam was relieved and made it to the meeting just in time.
Can we infer that "Sam missed his important meeting because he lost his keys"? Yes, no, or maybe?