part_of part of part of expressed in x expressed in y if and only if there is a gene expression process (GO:0010467) that occurs in y, and one of the following holds: (i) x is a gene, and x is transcribed into a transcript as part of the gene expression process (ii) x is a transcript, and the transcription of x is part of the gene expression process (iii) x is a mature gene product such as a protein, and x was translated or otherwise processes from a transcript that was transcribed as part of this gene expression process 'neural crest cell' SubClassOf expresses some 'Wnt1 gene' Chris Mungall expresses genomically related to continuant generically dependent continuant material entity material entity material anatomical entity pending final vetting