TASK DEFINITION: In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.
PROBLEM: In positive psychology , researchers are studying what gives a person satisfaction in life .

SOLUTION: In positive psychology , social scientists study what might contribute to living a good life , or what would lead to people having increased positive mood and overall satisfaction with their life .

PROBLEM: In April 2018 , Jong-un and Moon Jae-in formally attended the inter-Korean summit of 2018 and agreed to formally end the Korean War before 2019 .

SOLUTION: At the April 2018 inter-Korean summit , Kim and South Korean President Moon Jae-in signed the Panmunjom Declaration , pledging to convert the Korean Armistice Agreement into a full peace treaty , formally ending the Korean War , by the end of the year .

PROBLEM: The reigning titleholders dedicate their year to school tours , tree planting activities , street campaigns , coastal clean ups , speaking engagements , shopping mall tours , media guesting , environmental fair , storytelling programs , eco-fashion shows , and other activities .

SOLUTION:
The reigning titleholders dedicate their year to promote specific projects and often address issues concerning the environment and other global issues through school tours , tree planting activities , street campaigns , coastal clean ups , speaking engagements , shopping mall tours , media guesting , environmental fairs , storytelling programs to children , eco-fashion shows , and other environmental activities .