context: Graduation ceremony has a sub-event of take photo. Think about hot chick has a sub-event of you get high. Socialize does not have a sub-event of put unlike item together. Take photo has a sub-event of check light level. Walk dog has a sub-event of walk. Talk has a sub-event of walk. Ride roller coaster has a sub-event of you get high. Ride roller coaster has a sub-event of check light level. Walk has a sub-event of take photo. Socialize has a sub-event of talk. Socialize does not have a sub-event of take your shirt off.
text: Walk does not have a sub-event of check light level.