Read book is involved with entertain yourself. Class is not involved with read book. Conference is not involved with have person listen to you. Walk is a means of accomplishing go somewhere. Walk is involved with read book. Class is not involved with walk. Conference is not involved with you make yourself late for work. Class is involved with lift your knee. Be in bathroom is involved with lift your knee. Class is involved with entertain yourself. Talk is involved with walk. Conference is involved with talk.
Talk is involved with walk.