Rubuta wani ɗan gajeren sakin layi na labari da aka ba da batun da ke gaba:  Mutum X ya wallafa wata takarda
Tabbas, ga ɗan gajeren sakin layi: Johnna ta buga takarda a cikin mujallar Kimiyya saboda Johnna yana son a san shi a matsayin masanin kimiyya mai daraja. Wannan takarda ta musamman game da binciken Johnna ne game da tasirin dumamar yanayi a kan yawan penguin.