FCL.010
Category of aircraft means a categorisation of aircraft according to specific basic characteristics, for example aeroplane, powered-lift, helicopter, airship, sailplane and free balloon.
. 'Dual' has nothing at all to do with multi-pilot aircraft but is an abbreviation for 'dual instructional time', which is also defined in FCL.010. If an LAPL(A) holder does not have the required 12 hours PIC in the preceding 12 months, the regulation simply permits any shortfall to be replaced with dual instruction or supervised solo - it does not suggest that the dual instruction should be logged as PIC.
Whopity just beat me to it!